prosiłbym o rozwiązanie tych zadań które są w załączniku pozdrawiam.
2.(x-3)(x+6)=x^2+6x-3x-18=x^2+3x-18
(a+)(a-)=wzor skrocenego mnozenia a^2 -3
3x+2y-2x-y=x+y
3.8xyz+4xy=4xy(2z+1)
25a^3b^3 + 5ab^2=5ab^2(5a^2b+1)
4.V=abc=1.5y*y*2y=3y^3
3*27=81
5.-2(3*(-2)^2+-2-5)-4((-2)^2-4*-2+1)=-12-52=-64
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2.(x-3)(x+6)=x^2+6x-3x-18=x^2+3x-18
(a+)(a-)=wzor skrocenego mnozenia a^2 -3
3x+2y-2x-y=x+y
3.8xyz+4xy=4xy(2z+1)
25a^3b^3 + 5ab^2=5ab^2(5a^2b+1)
4.V=abc=1.5y*y*2y=3y^3
3*27=81
5.-2(3*(-2)^2+-2-5)-4((-2)^2-4*-2+1)=-12-52=-64