Answer:
15 x 2 + 15 x r
Step-by-step explanation:
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Step-by-step explanation:
Area of rectangle(A)=l×b
=4x×(x^2-2x+6)
= 4x^3-8x^2+24x
The length is 28ft. W=15 so you’d subtract 30 from 86 and get 56. Then divide 56 by 2 and get 28 which is the length. You can check this by adding 15+15+28+27 together and see if it equals 86 which it does.