Alg 2 Midterm Review 2

Factor this difference of cubes:
x³ - 343

• (x + 7) (x² - 7x + 49)
• (x² + 1) (x - 343)
• (x - 7) (x² + 7x + 49)
• (x² - 343) (x + 1)

Tags

CCSS.HSA.APR.C.4

Factor by grouping:
4p³+8p²+3p+6

• (2p²+3)(p+2)
• (2p²+6)(p+4)
• (4p²+3)(p+2)
• (4p²+8p)(3p+6)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve: 2x²-14x+24 = 0

• x = 4, 3

• x = 9/2, 10/4

• x = -3, -4

• x = -9/2, -10/4

Tags

CCSS.HSA-REI.B.4B

Factor x³+125

• (x+5)(x²-25)

• (x-5)(x²+25)

• (x+5)(x²-5x+25)

• (x-5)(x²+5x+25)

Tags

CCSS.HSA.APR.C.4

Factor Completely:  3n² - 15n + 18

• (n - 2)(n - 3)
• 3(n + 2)(n + 3)
• (3n - 9)(n - 2)
• 3(n - 3)(n - 2)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve by factoring.

14x - 49x² = 0.

• x = 0, x = 7/2

• x = -2/7, x = 2/7

• x = 0, x = 2/7

• x = 2, x = 7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

3x³ + x² - 14x = 0

• You can't factor.......

• x = 0, x = 2, x = -7/3

• x = 0, x = -2, x = 7/3

• x = 2, x = -7/3

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

x³ + 2x² - 9x - 18 = 0

• x = 2, x = 3

• x = -2, x = -3, x = 3

• x = -2, x = 2, x = -3, x = 3

• You can't factor........

Solve by factoring.

5x² = 18x + 8

• x = -8, x = 5

• x = 8, x = -5

• x = 2/5, x = -4

• x = -2/5, x = 4

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal to 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B