Factoring
x2 - 1 = 0
{-1, 1}
Solve the following quadratic equation by factoring:
x2 - 4 = 0
{-2, 2}
Solve the following quadratic equation x2 = 16
{-4, 4}
Solve the following by using the quadratic formula.
4x2+4x+1=0
x=-1/2
What are two other names for solutions to a quadratic equation?
Roots
Zeros
X-Intercepts
Solve the following quadratic equation by factoring.
x2 - 6x + 5 = 0
{1, 5}
Solve the following quadratic equation by factoring:
9x2 - 81x = 0
{0, 9}
Solve the following quadratic equation : x2 = 81
{No solution}
Solve the following quadratic equation by using the quadratic formula: x2 + 6x + 5 = 0
x = -1, x = -5
What is (x+3)2
x2+6x+9
Solve the following quadratic equation by factoring.
x2 - 7x + 6=0
{6, 1}
Solve the following quadratic equation that has already been factored for you:
(x - 3)(5x + 1) = 0
{3, -1/5}
Solve the following equation by taking the square root. 18-x2=12
{-2,2}
Solve the following quadratic equation by using the quadratic formula. Round your answer to the nearest hundredth: x2 - 9x + 6 = 0
{0.72, 8.27}
Name three ways to solve a quadratic equation.
solving quadratics by graphing, factoring quadratics, solving quadratics using the quadratic formula, or taking square roots
Solve the following quadratic equation by factoring.
x2 - 8x = 20
{10, -2}
Solve the following quadratic equation by factoring:
5x2 + 41x - 12 = -4 + 2x
{1/5, -8}
Solve the following quadratic equation. Round your answers to the nearest tenth: x2 + 5 = 0
No Real Solution
Solve the following quadratic equation by using the quadratic formula: 2x2 + 9x + 4 = 0
{-1/2, -4}
Quadratic functions have a constant what?
Second Rate of Change
Solve the following quadratic equation by factoring:
2x2+9x+3=8
{-5,1/2}
Solve the following quadratic equation by factoring:
4x2-6x=-6x+1
{-1/2,1/2}
Solve the following quadratic equation:
2x2 -5 = 13
x = 3, x = -3
Solve the following quadratic equation by using the quadratic formula (nearest tenth):
4x2 - 17x =-12
{0.9, 3.4}
If f(x)=6x+2, and g(x)=3x-5, what if (f-g)(x)?
3x+7