Solve Quadratics by Factoring

Which values of x make this equation true?

5x²-25x=5x-40

• x= -4, -2

• x= -4, 2

• x= 4, 2

Solve the quadratic equation: x²-7x=0

• x= 0, -7

• x= 0, 7

• x=1, -1

• $x=\sqrt{7},\ x=-\sqrt{7}$

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

Write the equation in factored from. Then list the solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1) = 0; x=2, x=-1

• (x + 1)(x - 3) = 0; x=-1, x=3

• (x + 2)(x - 1) = 0; x=-2, x=1

• (x - 1)(x + 3) = 0; x=1, x=-3

Solve the quadratic equation:

5m² + 1 = 6

• m = 0

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5