Question

Please help me, how do you do this

Answer 1

Answer:

84x+50

Step-by-step explanation:

First, you would find the area of the entire square. The area of a square is LW, so you would multiply (7x+6)(7x+6). For this, I would use the FOIL method, so you would multiply the first terms which would be (7x)(7x)=14x^2. Then the outside terms, so (7x)(6)=42x. Then the inside, so (7x)(6)=42x. Finally, the last terms, 6(6)=36.

Then you would combine them, so the area of the whole square is $14x^{2} +42x+42x+36$ which would equal $14x^{2} +84x+36$.

Then, the area of the smaller square is (x)(x) which would equal $x^{2}$.

Then you would subtract the smaller square from the bigger one, so the final answer would be $14+84x+36$ which you could simplify to $84x+50$