Question

Which of the following is equivalent to 16a2 − 49?

a. (4a − 7) (4a − 7)
b. (4a + 7) (4a − 7)
c. (7 − 4a) (7 − 4a)
d. (7 + 4a) (7 − 4a)

Answer 1

\[x^2-y^2=(x+y)(x-y)\] in this case \(x=4a, y = 7\)

Answer 2

so the answer is c

Answer 3

no

Answer 4

ok

Answer 5

so what is it?

Answer 6

What @satellite73 gave you, he gave you the answer, base on that.

Try to connect his answer to your problem.

Answer 7

so b?

Answer 8

Correct.

Answer 9

thanks