Question

expand
$(-5x+y+3z)^2$
using suitable property​

Answer 1

Answer:

25x^2 +4y^ 2 +9z^2 +20xy+12yz+30zx

Step-by-step explanation:

====25x^2 +4y^ 2 +9z^2 +20xy+12yz+30zx

====(a+b+c) ^ 2  =a^  2  +b^  2 +c^  2  +2ab+2bc+2ca

====25x  ^2 +4y  ^2 +9z  ^2  +20xy+12yz+30zx