Question

expand(2x+3y+4z)². .............​

Answer 1

$4x ^{2} + 6y ^{2} + 16z ^{2} + 12xy + 24yz + 16xz$

Step-by-step explanation:

(a+b+c)

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