7.5-7.8 Quiz Review

Find the factors of

x² + x - 6

• (x - 6)(x - 9)

• (x + 3)(x + 2)

• (x + 3)(x - 2)

• (x + 2)(x + 4)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.SSE.A.2

What is the first step in factoring this problem?

x² - 5x - 36

• Multiply

• List the factors of -36

• Add the factors of -36

• Factor out the GCF

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Find the factors of

5m² - 45m + 90

• 3(m + 1)(m + 8)

• 5(m - 3)(m - 6)

• 2(m - 7)(m + 3)

• 5(m - 5)(m + 3)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.APR.B.2

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Find the factors of

2b² + 14b - 16

• 2(b - 1)(b + 8)

• 6(b - 1)(b - 5)

• 2(b + 1)(b - 8)

• 2(b - 1)(b - 8)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

A rectangle has an area of 2x² – 19x +45 ft². What are the dimensions of the rectangle?  

• (2x - 9)(x - 5)
• (2x + 9)(x + 5)
• (2x - 5)(x - 9)
• (2x - 5)(x + 9)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

A rectangle has an area of 4x² +19x + 12 and a length of (x + 4). What is the width?

• 4x - 3
• 4x + 3
• 2x + 6
• 2x + 3

Tags

CCSS.HSA.APR.D.6

A rectangle has an area of 25x² - 81, what are the length and width of the rectangle?

• (5x - 9) & (5x + 9)

• (5x - 9) & (5x - 9)

• (5x + 9) & (5x + 9)

• There is no way for us to know.

A rectangle has an area of k² -2k - 24, what is the length & width of the rectangle?

• (k+4) & (k-6)

• (k+4) & (k+6)

• (k+6) & (k-1)

• (k-4) & (k+6)

Factor Completely.  
8x³ - 18x

• 2x(4x²-9)                                    
• (4x²+3)(2x-3)
• 2x(2x+3)(2x-3)
• PRIME

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Find the area of the rectangle.

• 9x² - 2x
• 9x² - 2
• 10x - 2
• 20x - 4 

Tags

CCSS.3.MD.D.8