Question

(25-x) whole cube
Please send answer.

Answer 1

$(a-b)^3=a^3-3a^2b+3ab^2-b^3\\(25-x)^3=(25)^3-(3*(25)^2*x)+(3*25*(x)^2)-x^3\\(25-x)^3=15625-1875x+75x^2-x^3$