Math II Solving Quadratics Equations

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.HSA-REI.B.4B

Find the expression equivalent to x²+5x-24

• (x+3)(x+8)
• (x-3)(x-8)
• (x+3)(x-8)
• (x-3)(x+8)

Solve by taking square roots:
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Tags

CCSS.HSA-REI.B.4B

Find the expression equivalent to (x-1)(x-9)

• x²+9
• x²-10x+9
• x²-10x-9
• x²+10x+9

Tags

CCSS.HSA.APR.A.1

Find the greatest common factor.
55a⁴b³+20a³b²-5a²b

• 5
• 5a²b
• 5ab²
• 5a⁶b³

Which binomials are a difference of squares?
I. 6a²-25
II. 4x²+16
III. b²-9
IV. 49y²-64

• I only
• III only
• III and IV
• II, III, and IV

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solution

Tags

CCSS.HSA-REI.B.4B

Factor
n² + 16n + 63

• (n-7)(n+4)
• (n+7)(n-9)
• (n-3)(n-10)
• (n+7)(n+9)

Find c so that x² + 8 + c is a perfect square trinomial.

• 16
• 4
• 8
• -4

Tags

CCSS.HSA-REI.B.4B

Solve 2x² - 8x= 0 using completing the square.

• 0
• 2
• 4
• 8

Tags

CCSS.HSA-REI.B.4B