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brakoff2003
@brakoff2003
March 2022
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Спростити вираз: x(2x-9)^2-2x(15+x)^2
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Kixcertborn2
Verified answer
x(2x-9)^2-2x(15+x)^2=
=x*(4x^2-36x+81)-2x*(225+30x+x^2)=
=4x^3-36x^2+81x-450x-60x^2-2x^2=
=2x^3-96x^2-369x
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Answers & Comments
Verified answer
x(2x-9)^2-2x(15+x)^2==x*(4x^2-36x+81)-2x*(225+30x+x^2)=
=4x^3-36x^2+81x-450x-60x^2-2x^2=
=2x^3-96x^2-369x