Factoring
Use the Zero Product Property to solve the following quadratic equation.
(x - 7)(x + 2) = 0
x = 7 x = -2
Solve the following quadratic equation by using square roots:
x2 = 4
x = 2 x = -2
Solve the following quadratic equation by completing the square:
x2 + 6x = -8
x = -2 x = -4
What are the first 2 steps of the quadratic formula?
Set equal to zero and identify a, b and c
What is i2?
-1
Solve the following quadratic equation by factoring.
x2+3x+2 = 0
x = -2 x = -1
Solve the following quadratic equation by using square roots:
(x+2)2 = 49
x= -9 x= 5
Solve the following quadratic equation by completing the square:
x2 - 6x = -5
x = 1 x = 5
Solve the following quadratic equation by using the quadratic formula:
x2 + 6x + 5 = 0
x = -1 x = -5
If there is a negative under the radical (square root), what does it become?
Solve the following quadratic equation by factoring.
x2 - 6x + 5 = 0
x = 5 x = 1
Solve the following quadratic equation by using square roots:
4x2 = 400
x = 10 x = -10
Solve the following quadratic equation by completing the square:
x2 - 2x - 24 = 0
x = -4 x = 6
Solve the following quadratic equation by using the quadratic formula:
x2 - 9x + 20 = 0
x = 5 x = 4
If you had the square root of 8, what 2 numbers would you break it into?
4 and 2
Solve the following quadratic equation by factoring.
2x2 - 4x - 16 = 0
x = -2 x = 4
Solve the following quadratic equation by using square roots:
x2 -9 = -8
1 or -1
Solve the following quadratic equation by completing the square:
x2 - 18x +97 = 0
x = 9-4i x= 9+4i
Solve the following quadratic equation by using the quadratic formula:
2x2 + 9x + 4 = 0
x = -1/2 x = -4
When typing the quadratic formula in your calculator, what do we type in FIRST?
Everything under the radical
Solve the following quadratic equation by factoring.
3x2 - 13x - 30 = 0
x = -5/3 x = 6
Solve the following quadratic equation by using square roots:
5x2 + 3 = 128
x = 5 x = -5
Solve the following quadratic equation by completing the square:
2x2 - 8x = 10
x = 5 x = -1
Solve the following quadratic equation by using the quadratic formula:
4x2 - 17x - 15 = 0
x = 5 x = -3/4
Where do we look to find the zeros/solutions on a graph?
The x-intercepts