How do you expand #(4x+3y)^2#? Precalculus The Binomial Theorem Pascal's Triangle and Binomial Expansion 1 Answer Shaikh A. Dec 6, 2016 #16x^2+24xy+9y^2# Explanation: using formula #(a+b)^2=a^2+2ab+b^2# Therefore #(4x+3y)^2=(4x)^2+2(4x)(3y)+(3y)^2# #16x^2+24xy+9y^2# Answer link Related questions What is Pascal's triangle? How do I find the #n#th row of Pascal's triangle? How does Pascal's triangle relate to binomial expansion? How do I find a coefficient using Pascal's triangle? How do I use Pascal's triangle to expand #(2x + y)^4#? How do I use Pascal's triangle to expand #(3a + b)^4#? How do I use Pascal's triangle to expand #(x + 2)^5#? How do I use Pascal's triangle to expand #(x - 1)^5#? How do I use Pascal's triangle to expand a binomial? How do I use Pascal's triangle to expand the binomial #(a-b)^6#? See all questions in Pascal's Triangle and Binomial Expansion Impact of this question 9792 views around the world You can reuse this answer Creative Commons License