Question

(3x+2y)^3

Answer 1

you could expand this by first finding (3x + 2y)^2
then multiply the result by 3x + 2y

or you could use Pascalstriangle

Answer 2

Pascals triangle:-

the last line gives the coefficients of the terms in the expansion of (x + y)^3

Answer 3

Use the following formula:
(a+b)^3 = (a+b)(a^2+b^2 -ab)

Answer 4

Ok so break this problem down > (3x + 2y) * (3x + 2y) * (3x + 2y) > (3x + 2y)(9x^2 + 12xy + 4y^2) > ?

Answer 5

\[\left( a+b \right)^3=a^3+b^3+3ab(a+b)\]
\[\left( a-b \right)^3=a^3-b^3-3ab(a-b)\]