Question

I need help with both these questions with steps and explanation to please

Answer 1

Answer: 4. l=11x^3+9y

5. w=x+3

Explanation:

4. l=length of square. P=perimeter of square

P=4l

4l=44x^3+36y

l=11x^3+9y

5. A=l*w

4x^2+12x=4x*w

4x(x+3)=4x*w

w=x+3