(x+7) (x²-7x+49=x(x+8) (x-7)????????????????????

Question

(x+7) (x²-7x+49=x(x+8) (x-7)????????????????????

Answer 1

(x+7)(x^2-7x+49)=x^3+7^3=x^3+343
x(x+8)(x-7)=(x^2+8x)(x-7)=x^3-7x^2+8x^2-56x=x^3+x^2-56x
неверное равенство