Solve by 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 - 8 = -4
x = 2 x = -2
Solve the following quadratic equation by factoring:
x2 + 6x = -8
x = -2, -4
What is the quadratic formula?
x = (-b +- sqrt(b^2 - 4ac)) /(2a)
What is i equivalent to?
square root of -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:
4x2= 400
x = 10 x = -10
Solve the following quadratic equation by factoring:
x2 - 6x = -5
x = 1, 5
Solve the following quadratic equation by using the quadratic formula:
x2 + 6x + 5 = 0
x = -1 x = -5
Solutions to quadratic equations can also be called three other things. What are they?
roots
zeros
x-intercepts
Solve the following quadratic equation by factoring.
x2 - 6x + 5 = 0
x = 5 x = 1
Solve the following quadratic equation by using square roots:
3x2 + 4 = 166
± 3√(6)
Solve the following quadratic equation by factoring:
x2 - 2x - 24 = 0
x = -4, 6
Solve the following quadratic equation by using the quadratic formula:
x2 - 9x + 20 = 0
x = 5 x = 4
Find the Discriminate and type of solutions.
3x2 -x -15 = 15
Discriminate: 361
2 real solutions
Solve the following quadratic equation by factoring:
2x2 - 8x - 10 = 0
x = 5, -1
Solve the following quadratic equation by using square roots:
-3x2 = 150
±5i√(2)
Solve the following quadratic equation by factoring.
2x2 - 5x - 3 = 0
x = -1/2 x = 3
Solve the following quadratic equation by using the quadratic formula:
2x2 - 16x + 8 = 0
4 ± 2√(3)
What is the value of i49
i
Solve the following quadratic equation by factoring:
8x2 - 2x - 15 = 0
x= -5/4 and 3/2
Solve the following quadratic equation by using square roots:
5(x-2)2 +1 = 61
x = 2 ± 2√3
Solve the following quadratic equation by factoring.
4x2 - 2x - 27 = 3x2 + 4x
x = 9 x = -3
Solve the following quadratic equation by using the quadratic formula:
7x2 - 8x + 4 = 0
4± 2i√(3) / 7
What is Ms. Meyer's birthday(including the year)?
06/05/2002