Question

Which expressions are equivalent to (x^2 - 9) (x+3)

select the equivalent expressions ( 3 answers please)
A) (x+3)^2 (x-3)
B) x-3)^2 (x+3)
C) (x+3)^3
D) (x+3) (x+3) (x-3)
E) (x+3) (x-3) (x-3)
F) [(x)^2 + (3)^2} (x-3)

Answer 1

`( {x}^(2) - 9)(x + 3) \\ (x + 3)(x - 3)(x + 3) \\ (x + 3)^(2) (x - 3)`

Therefore the answer is A.

`( {x}^(2) - {y}^(2) ) = (x + y)(x - y)`

Here is the formula that is used for answering.