Ответ:
1)(2x-(x-1))*(4x^2+2x*(x-1)+(x-1)^2)=(2x-(x+1)*(4x^2x*(x-1)+(x-1)^2)=
(2x-x+1)*(4x^2x^2-2x+x^2-2x+1)=(x+1)*(7x^2-4x+1)
2)(3x-2)*(2x+1)-2x*(x-0.5)-23=
6x^2+3x-4x-2-2x*(x-0.5)-23=4x^2+3x-4x-2+x-23=
4x^2+0-25=4x^2-25=(2x-5)*(2x+5)
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Answers & Comments
Ответ:
1)(2x-(x-1))*(4x^2+2x*(x-1)+(x-1)^2)=(2x-(x+1)*(4x^2x*(x-1)+(x-1)^2)=
(2x-x+1)*(4x^2x^2-2x+x^2-2x+1)=(x+1)*(7x^2-4x+1)
2)(3x-2)*(2x+1)-2x*(x-0.5)-23=
6x^2+3x-4x-2-2x*(x-0.5)-23=4x^2+3x-4x-2+x-23=
4x^2+0-25=4x^2-25=(2x-5)*(2x+5)