Dylan uses the expressions (x2 - 2x + 8) and (2x2 + 5x - 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan's room?

A. 2x^4-10x-56

B. 2x^4+10x+56

C. 2x^4+x^3-x^2+54x-56

D. 2x^4+9x^3+33x^2+54x+56

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1 September, 09:56

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Stanton · Answer 1

U find the area by multiplying length and width to arrive at the answer, which is : C. 2x^4 + x^3 - x^2 + 54x - 56

Dylan uses the expressions (x2 - 2x + 8) and (2x2 + 5x - 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan's room?A. 2x^4-10x-56B. 2x^4+10x+56C. 2x^4+x^3-x^2+54x-56D. 2x^4+9x^3+33x^2+54x+56