Activities 7-9 Test Review

Solve 2x² - 7x + 6 = 0 by factoring

• x = -3/2 and x = -2

• x = -3 and x = -2

• x = 3 and x = 2

• x = 3/2 and x = 2

Convert x²+6x+9 to factored form and identify the solution.

• (x+3)(x+3); x=-3
• (x+4)(x+5); x=-4, -5
• (x-3)(x-3); x=3
• Not factorable

Solve for r.

• -3, 4
• 3, 4
• -4, -3
• -3

Convert x²-9x+20 to factored form and solve.

• (x-10)(x+2); x=-2, 10
• (x+4)(x+5); x=-5, -4
• (x-4)(x-5); x=4, 5
• Not factorable

• Factoring when a = 1

• Completing the Square

• Factoring when a > 1

• Square Roots

Simplify √50

• 5√10
• 10√5
• 5√5
• 5√2

What is another word for the "solutions" of a quadratic equation?

• roots

• factors

• GCF

• monomials

Multiply: 
(4 – 3i)(-7 – 2i)

• A.  -23 + 13i
• B.  -23 - 29i
• C.  -34 + 13i
• D.  -34 - 29i

(3i)(-2+4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

Simplify √-4

• 2i
• -2i
• 2
• 4i