Question

Use the Binomial Theorem to expand the binomial and express the result in simplified form. (5x-5y)3

Answer 1

Help much appreciated!

Answer 2

\[\huge\rm (a+b)^3=1a^3+3a^2b+3ab^2+b^3\]

Answer 3

you can use pascal's triangle for the coefficient
and the exponent of first term start from highest degree to 0
and the exponent of 2nd term start from 0 to highest degree
like in this example
power of first term is decreasing and 2nd term exponents are increasing