Question

A³+3ab(a+b)+b³=(a+b)³

Answer 1

Ответ смотри во вложении)

Answer 2

Yes, that equation is correct. The equation you provided is known as the "sum of cubes formula," and it states that for any real numbers "a" and "b," the equation holds true:

a³ + 3ab(a + b) + b³ = (a + b)³

This formula is a special case of the binomial theorem and is used to expand the cube of a binomial expression (a + b)³. When expanded, it simplifies to the left-hand side of the equation.