Factoring Methods

Which of the following methods would be best to solve this equation by Factoring?
25x² - 16 = 0

• Difference of Squares

• GCF

• I-Chart (when a =1)

• Factor by Grouping

Factor
20x³-28x²-15x+21

• (4x²-3)(5x-3)

• (4x²+3)(5x-3)

• (4x²-3)(4x²-7)

• (4x²-3)(5x-7)

Factor
12p³+28p²-42p-98

• 2(2p²+7)(3p+7)

• 2(2p²+7)(3p-7)

• 2(2p²-7)(3p+7)

• 2(2p²-7)(3p-7)

Factor 
u³-8

• (u-2)(u²+2u+4)

• (u+2)(u²-2u+4)

• (u-2)³

• (u+2)³

Which method of factoring would you choose for
27u⁶-63u³

• Different of Squares

• Grouping

• I- Chart with Grouping (a>1)

• Perfect Cubes

Which of the following methods would be best to solve this equation by Factoring?
8x³ - 125 = 0

• Difference of Squares

• Factor by Grouping

• GCF

• Difference of Cubes

Which of the following methods would be best to solve this equation by Factoring?
x² - 6x - 27 = 0

• Difference of Squares

• I-Chart with Grouping (when a > 1)

• Factor by Grouping

• I-Chart when a = 1

Which of the following methods would be best to solve this equation by Factoring?
7x³ + 49x² = 0

• GCF

• I-Chart with Grouping (a > 1)

• Diffefernce of Squares

• Difference of Cubes