Find the perimeter if the length is x^2-9 and the length is x^2-4 Choose the correct one a) x^2-13x+36 b) x^4-13x^2+36 c) 4x^2 - 26 d) 2x^2 -13
The question mentions that "the length is x^2-9 and the length is x^2-4." It seems like there might be a mistake in the question, as it does not make sense for the length to be two different values.
However, assuming there is a typo and the question intends to provide the measure of the length and width of a rectangle, we can still find the perimeter.
Perimeter of a rectangle = 2 × (length + width)
If the length is x^2 - 9 and the width is x^2 - 4, then the perimeter would be:
Perimeter = 2 × (x^2 - 9 + x^2 - 4)
= 2 × (2x^2 - 13)
= 4x^2 - 26
Therefore, the correct answer is c) 4x^2 - 26.