Answer:
\((8x+7)(8x-7)\)
Step-by-step explanation:
Rewrite the expression as:
\(64x^2-49=(8x)^2-7^2\)
We obtained a difference of two squares, so we can use the next formula:
\(a^2-b^2=(a+b)(a-b)\)
In this case:
\(a=8x\)
and
\(b=7\)
Therefore:
\((8x)^2-7^2=(8x+7)(8x-7)\)
