Quadratic Equations
In mathematics, a quadratic equation is a polynomial equation of the second degree. The general form is
ax
^{2} +
bx +
c = 0
where a ≠ 0. (For a = 0, the equation becomes a linear equation.)
The letters
a,
b, and
c are called coefficients: the quadratic coefficient
a is the coefficient of x
^{2}, the linear coefficient
b is the coefficient of x, and
c is the constant coefficient, also called the free term or constant term.
Quadratic equations are called quadratic because quadratus is Latin for "square"; in the leading term the variable is squared.
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quadratic equations videos replace textbased tutorials and give you better stepbystep explanations of quadratic equations. Watch each video repeatedly until you understand how to approach quadratic equations problems and how to solve them.
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Top Quadratic Equations Worksheets
equations, quadratic equations, solving equations, solving quadratic equations, graphing, graphing quadratic equations, graphs, .
Finding Equation Of A Circle By Completing The Square 2 Video Clip
Finding Equation Of A Circle By Completing The Square 2
Video Clip Length: 6 minutes 5 seconds
Video Clip Views: 43612
circle equation, circles, completing the square, curves, equations, plane figures, quadratic equations, shapes, solving equations, solving quadratic equations
Finding The Center And Radius Of A Circle By Completing The Square Video Clip
Finding The Center And Radius Of A Circle By Completing The Square
Video Clip Length: 5 minutes 29 seconds
Video Clip Views: 34418
center, circles, completing the square, curves, equations, plane figures, quadratic equations, radius, shapes, solving equations, solving quadratic equations
Finding Equation Of A Circle By Completing The Square Video Clip
Finding Equation Of A Circle By Completing The Square
Video Clip Length: 5 minutes 42 seconds
Video Clip Views: 26951
circle equation, circles, completing the square, curves, equations, plane figures, quadratic equations, shapes, solving equations, solving quadratic equations
Finding Equation Of A Circle By Completing The Square 3 Video Clip
Finding Equation Of A Circle By Completing The Square 3
Video Clip Length: 3 minutes 29 seconds
Video Clip Views: 25806
circle equation, circles, completing the square, curves, equations, plane figures, quadratic equations, shapes, solving equations, solving quadratic equations
Quadratic Formula Video Clip
Quadratic Formula
Video Clip Length: 2 minutes 8 seconds
Video Clip Views: 21357
equations, formulas, quadratic equations, quadratic formula, solving equations, solving quadratic equations
Quadratic Equations With Radical Expressions Video Clip
Factoring Quadratic Equations Video Clip
Factoring Quadratic Equations
Video Clip Length: 2 minutes 1 second
Video Clip Views: 18470
equations, factoring, factoring equations, factoring quadratic equations, factorization, quadratic equations
Completing The Square Video Clip
Completing The Square
Video Clip Length: 2 minutes 34 seconds
Video Clip Views: 18366
completing the square, equations, quadratic equations, solving equations, solving quadratic equations
Solving Quadratic Equations Using Quadratic Formula 4 Video Clip
Quadratic Formula And Discriminant Video Clip
Quadratic Formula And Discriminant
Video Clip Length: 7 minutes 48 seconds
Video Clip Views: 17217
equations, formulas, quadratic equations, quadratic formula, solving equations, solving quadratic equations
Top Quadratic Equations Word Problems

A balloon is rising from the ground (#457)
A balloon is rising from the ground at 4... ...econds will the be at the same altitude?
equations, equations, quadratic equations, solving equations, solving quadratic equations, substitution method

A ball is shot into the air (#3415)
A ball is shot into the air. It's height... ...take the ball to reach a height of 35m?
equations, quadratic equations, solving equations, solving quadratic equations

completing the square (#505)
The path of the ball for many golf shots... ...zontally until it first hits the ground?
completing the square, equations, quadratic equations, solving equations, solving quadratic equations

A motor boat travels (#2261)
A motor boat travels 400km. If the boat... ...What was the original speed of the boat?
completing the square, equations, quadratic equations, solving equations, solving quadratic equations

A rectangle corral is to be built (#2014)
A rectangle corral is to be built using... ...ble area of the corral in square metres?
completing the square, equations, quadratic equations, solving equations, solving quadratic equations
See All Quadratic Equations Word Problems
Homework Help Questions
 In the quadratic formula, if b^{2}  4ac is less than 0, what can you say about the solution?
 In the quadratic formula, if b^{2}  4ac is greater than 0, what can you say about the solution?
 What is b^{2}  4ac called in the quadratic formula?
 Graph the quadratic formula
y = (1/3) (x+1)^{2} + 2
 Graph the quadratic equation
y = 2 (x2)^{2} + 1
 x^{2}8x+12=0
 2x+y=3y
 m=4n
3m2n=20
 h=0.0425d^{2}+3.57d
 x+y=5 and 2x3y=4
 y=2x^{2}4x15
 y = 5x  6
y = 9x  7
 x = y  1
y = 4 2x
 8cd=3
4c5d=15
 x^{2}8x+12=0
 2x+y=10
y=3x
 5x+4y=35
y=2x+1
 y=x^{2}3x10
 Write a quadratic equation having the given numbers as solutions. 9 and 4
 x^{2}8x+11
 two numbers have a sum of 20. the second is 2 mores than three times the first. find the numbers
Post a homework question on quadratic equations:
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