Question

( x-3c)^3 - (x + 2c)^3 срочно

Answer 1

(x^3-3*x^2*3c+3*x*(3c)^2-(3c)^3)-(x^3+3*x^2*3c+3*x*(3c)^2+(3c)^3)=(x^3-9x^2c+27xc^2-27c^3)-(x^3+9cx^2+27xc^2+27c^3)=x^3-9x^2c+27xc^2-27c^3-x^3-9cx^2-27xc^2-27c^3= -54c^3-18x^2 вроде так