The sides of the frame are (12+2x) and (6+2x).
Its area A is 112.
Therefore by equating:
(12+2x)*(6+2x)=112
you can get the answer for x. You will obtain a quadratic equation you have to solve.
Answer:
= (x + 5)(x - 9)
Step-by-step explanation:
Answer:
to what
Step-by-step explanation: