A 8.6-8.9 Review

What is the standard form for a Quadratic Equation?

• ax²+ bx = - c

• x = -b ± √(b²-4ac) / 2a

• ax² + bx + c = 0

• y = mx + b

What are the solutions to this equation? (x-3)(x+2)=0

• x=3,-2
• x=-3,2
• x=2,3
• x=3,2

Find the solutions of the quadratic equation by factoring

x²+2x-15=0

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Find the solutions of the quadratic equation by factoring

x²+12x+35=0

• x = -5 or x = -7

• x = 5 or x = 7

• x = -35 or x = -1

• x = -9 or x = -4

Find the solutions of the quadratic equation by factoring

x²+x+3=0

• x = 1 or x = 3

• x = -1 or x = -3

• x = -3 or x = 1

• No solutions

Solve by taking square roots:

5m² + 1 = 6

• m = 1

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

Solve using square roots.

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no real solution

Use the square root property to solve the Quadratic Equation.

x² = -49

• ± 7

• -7

• ± 2401

• no real solution

Find the missing value "c" to complete the square.

x² + 6x + ____

• 9

• 12

• 36

• - 9

Factor the perfect square trinomial

x²-18x+81

• (x-18)²

• (x-9)²

• (x+81)²

• (x+9)²