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Katyanochek1 [597]
3 years ago
9

1. The expression x3+3x2+x-5 represents the total length across the front of the mansion. Find the length of side I. Show all wo

rk. X will stay a variable and your answer will be a polynomial.

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0
Given that t<span>he expression x^3+3x^2+x-5 represents the total length across the front of the mansion. Let the length of side I be a, then

x^4-2x^3+x-10+a-x^3+5x^2+2=x^3+3x^2+x-5 \\  \\ \Rightarrow a=x^3+3x^2+x-5-x^4+2x^3-x+10+x^3-5x^2-2 \\  \\ =\bold{-x^4+4x^3-2x^2+3}</span>
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