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viktor1020
@viktor1020
July 2022
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преобразуйте выражение в многочлен стандартного вида
а)3x(x-5)-5ч(x+3)
б)2y(x-y)+y(3y-2x)
в)2a(a-b)+2b(a+b)
г)3p(8c+1)-8c(3p-5)
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Verified answer
А)3x(x-5)-5x(x+3)=3x^2-15x-5x^2-15x=-2x^2-30x
б)2y(x-y)+y(3y-2x)=2yx-2y^3+3y^2-2xy=y^2
в)2a(a-b)+2b(a+b)=2a^2-2ab+2ab+2b^2=2a^2+2b^2
г)3p(8c+1)-8c(3p-5)=24pc+3p-24pc+40c=3p+40c
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Answers & Comments
Verified answer
А)3x(x-5)-5x(x+3)=3x^2-15x-5x^2-15x=-2x^2-30xб)2y(x-y)+y(3y-2x)=2yx-2y^3+3y^2-2xy=y^2
в)2a(a-b)+2b(a+b)=2a^2-2ab+2ab+2b^2=2a^2+2b^2
г)3p(8c+1)-8c(3p-5)=24pc+3p-24pc+40c=3p+40c