Answer:
Answer is option B. (8+7x)
Step-by-step explanation:
In these questions we always simplify the equation to get the value of missing factor.
We assume that the missing factor is y.
The given equation is (64-49[tex]x^{2}[/tex])=(y)(8-7x)
[tex]8^{2}[/tex]-[tex](7x)^{2}[/tex] =(y)(8-7x)
(8-7x)(8+7x) = (y)(8-7x)
y = [tex]\frac{(8-7x)(8+7x)}{(8-7x)}[/tex]
y = (8+7x)
