6). 7m^2+14mn+7n^2 7) x^3y+8y 8) 0.04t^2-0.4tx+x^2 - вопрос №51302026721472738800420429253102220 от EgorJORDAN 08.12.2022 00:39

Question

Алгебра: 6). 7m^2+14mn+7n^2 7) x^3y+8y 8) 0.04t^2-0.4tx+x^2 9) 25x-x^3 10) 2x^2-20xy+50y^2 11) 3x-3y-ax-ay буду кто !

EgorJORDAN · Answer

6.7m²+14mn+7n²=7*(m²+2mn+n²)=7*(m+n)²7.x³y+8y=y*(x³+8)=y*(x+2)*(x²-2x+4)8.0,04t²-0,4tx+x²=(0,2t-x)²9.25x-x³=x*(25-x²)=x*(5-x)*(5+x)10.2x²-20xy+50y²=2*(x²-10xy+25y²)=2*(x-5)²...