length x^2-9
width x^2-4
x²-13x+36
2x²-13
x⁴-13x²+36
4x²-26
The area of a rectangle is given by multiplying its length by its width. Therefore, the area of the rectangle with length x^2-9 and width x^2-4 would be:
Area = (x^2-9)(x^2-4)
= x^4-4x^2-9x^2+36
= x^4-13x^2+36
The area of a square with side length 2x²-13 would be:
Area = (2x²-13)(2x²-13)
= 4x^4-26x^2-26x^2+169
= 4x^4-52x^2+169
The expression 4x²-26 does not represent the area of a rectangle or square, as it is not a multiplication of two variables or expressions.
Hope this helps!