Question

I dont understand this question, i did the factor of 36x^2 - 49 but I dont understand the second part

Answer 1

a = 6

b = 7

Explanation:

Since both 36 and 49 are perfect squares, you can find their square roots which are 6 and 7.

To check to see if it is correct, replace the a with 6 and replace the b with 7, then evaluate the exponents.