Question

Factor Completely: 25x2 − 9

(5x + 3)(5x − 3)

(5x − 3)(5x − 3)

(5x + 1)(5x − 9)

(5x − 1)(5x − 9)

Answer 1

\[25x^2 - 9\implies (5x)^2 - (3)^2 \]Difference of squares.

Answer 2

okay.so the second one?

Answer 3

No no.

Answer 4

\[a^2 - b^2 = (a + b)(a - b)\]That's a hint.

Answer 5

okay so I was right the first time. its the first one.

Answer 6

Yes.

Answer 7

yessss thanks!

Answer 8

Welcome ^_^