Factoring
When solving by factoring, what does the equation need to be equal to?
0
Solve the following quadratic equation by using square roots: x2= 4
x = 2, -2
Given the equation: x2 + 6x = -8 what is the value that completes the square?
What is the quadratic formula?
x = -b +- sqrt(b^2 - 4ac)/ 2a
To solve a quadratic equation by graphing, what property do you need to look at?
x-intercepts
Solve the following quadratic equation by using square roots: x2 = 121
+11 or -11
Solve the following quadratic equation by completing the square: x2 - 6x = -5
x = 1, 5
Solve the by using the quadratic formula: x2 + 6x + 5 = 0
x = -1, -5
Solve by graphing:
y=(x-3)2-1
x=2,4
Solve by factoring. x2 - 6x + 5 = 0
x = 5,1
Solve by using square roots: 4x2 = 400
x = 10, -10
Solve the following quadratic equation by completing the square: x2 - 2x - 24 = 0
x = -4, 6
Solve by using the quadratic formula: x2 - 9x + 20 = 0
x = 5, 4
Solve by graphing:
y=-x2-4x-3
x=-3,-1
Solve the following quadratic equation by factoring.
x2 - 6x - 27 = 0
x = -3, 9
Solve by using square roots: x2 + 9 = 21
2 square root 3 or -2 square root 3
Solve the following quadratic equation by completing the square: x2 + 10x +16 = 0
x = -2, -8
Solve by using the quadratic formula: x2 - 10x = -18
x = 5+-root(7)
Solve by graphing:
y=-x2-8x-12
x=-6, -2
Solve the following quadratic equation by factoring. 2x2 - 5x - 3 = 0
x = -1/2, 3
Solve the following quadratic equation by using square roots: 5x2 + 3 = 128
x = 5, -5
Solve the following quadratic equation by completing the square: x2-18x+26=8
x = 9+-3root(7)
Solve the following quadratic equation by using the quadratic formula: 6x2+8x=12
x = [-2+-root(22)]/3
Solve by graphing:
y=-1/2(x-2)2-1
No solution