Question

( X+2y+3z)^2 expand the following​

Answer 1

Answer:

x^2 + 4y^2+ 9z^2 +4xy+12yz+6xz by the algebraic identities of (a+b+c) ^2 =a^2+b^2+c^2+2ab+2bc+2ac . I hope to you are like my answer. thank you