Answer:
The perimeter of the rectangle is equal to ![(10x-30)\ cm](https://tex.z-dn.net/?f=%2810x-30%29%5C%20cm)
Step-by-step explanation:
Let
L-----> the length of the rectangle
W ----> the width of the rectangle
we know that
The perimeter of rectangle is equal to
![P=2(L+W)](https://tex.z-dn.net/?f=P%3D2%28L%2BW%29)
we have
![L=(3x-8)\ cm\\W=(2x-7)\ cm](https://tex.z-dn.net/?f=L%3D%283x-8%29%5C%20cm%5C%5CW%3D%282x-7%29%5C%20cm)
substitute
![P=2((3x-8)+(2x-7))](https://tex.z-dn.net/?f=P%3D2%28%283x-8%29%2B%282x-7%29%29)
![P=2(5x-15)](https://tex.z-dn.net/?f=P%3D2%285x-15%29)
![P=(10x-30)\ cm](https://tex.z-dn.net/?f=P%3D%2810x-30%29%5C%20cm)
B. Is correct I think. Hope this helped you
Answer:
420
Step-by-step explanation:
brainliest?
the result of adding two polynomials will always be another polynomial. A polynomial is an algebraic expression made up of the sum of monomials, which are products of numbers (coefficients) and variables in positive integer exponents.