8.5 GCF & Grouping

Factor

18a² - 15a

• 15a(3a - 1)

• 3a(6a - 1)

• 3(6a - 5)

• 3a(6a - 5)

Factor

56a³ - 8a

• 8a²(56a³ - 8a)

• 8a(7a² - 1)

• 8a(7a³ - a)

• 8a²(35a² - a)

Factor

4b⁵ + 4b³ + 16b²

• 4b³(b⁴+b²+4b)

• 4b³(b⁴+4b+5)

• 4(b⁵+b³+4b²)

• 4b²(b³+b+4)

Factor

5n³ - 10n² + 3n - 6

• (5n²+3)(n - 2)

• (5n² - 3)(n - 2)

• (5n³+3)(n - 2)

• 10n(n² - 6)

Factor

20x³ - 25x² + 4x - 5

• (5x² - 5)(4x+1)

• 5(x² - 1)(4x+5)

• (5x²+1)(4x - 5)

• (5x²+1)(4x - 1)

Factor

x³ + 7x² - 2x - 14

• (x² - 2)(x - 7)

• (x²+2)(x - 7)

• (x²+2)(x+7)

• (x² - 2)(x+7)

Solve

7x² - 21x = 0

• {0}

• {0, -3}

• {3}

• {0, 3}

Factor

6x²y - 18xy²

• 6(x - 3y)

• 6xy(x - 3y)

• 6xy²(x - 3)

• 6x²y(3y - 1)

Factor

10x²y⁵ + 25x⁴y²

• 5x²y²(5y³ + 2x²)

• 5x²y²(2y³ + 5x²)

• 5x²y²(5x² + 5y³)

• 5x²y²(2x² + 2y³)

Factor

x³ - 5x² + 5x - 25

• (x² - 5)(x - 5)

• (x²+5)(x - 5)

• (x²+5)(x+5)

• (x² - 1)(x - 25)