Question

expand (3X+2y+4z)^2​

Answer 1

Answer:

$(3x+2y+4z)^{2}$  =

Step-by-step explanation:

We know that $(a + b + c)^{2} = a^{2} + b^{2} + c^{2} + 2ab + 2bc + 2ca$.

Here, a = 3x, b= 2y, and c = 4z

$(3x+2y+4z)^{2}$ = $(3x)^{2}$ + $(2y)^{2}$ + $(4z)^{2}$ + $2(3x)(2y)$ + $2(2y)(4z)$ + $2(4z)(3x)$

now, do the rest