7.6-7.9 Review Factor and Solve Polynomials

Factor:
56a³-8a

• 8a²(56a³-8a)
• 8a(7a²-1)
• 8a(7a³-a)
• 8a²(35a²-a)

Factor Completely
16x²-32x

• 8x(2x-4)
• 16(x²-2x)
• 16x(x-2)
• Prime

Solve r² = 14r

• r(r - 14)
• r(r + 14)
• r = 0 and 14
• r = 0 and -14

Factor: x² – 5x – 24

• (x - 5)(x + 19)
• (x - 8)(x + 3)
• (x - 3)(x + 8)
• (x - 19)(x + 5)

Solve: y² - 6y + 8

• (y-2)(y-4)
• y=2 and 4
• (y + 2)(y + 4)
• y = -2 and -4

Solve: h² + 9h + 18

• (x + 3)(x + 6)
• h = -3 and -6
• (h + 3)(h + 6)
• x = 3 and 6

Solve: x² - 6x + 5 = 0

• -3 and -2

• -6 and 1

• 5 and 1

• -1 and -5

Which of the following is a factor of: 6x²-5x-4

• (3x-4)
• (2x-1)
• (3x+4)
• (2x-3)

Solve    2x² + 7x - 15 = 0

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

Factor by grouping:

4p³ + 8p² + 3p + 6

• (2p²+3)(p+2)

• (2p²+6)(p+4)

• (4p²+3)(p+2)

• (4p²+8p)(3p+6)