Question

Expand (4x + 2y + z)2 by using identity.

Answer 1

Answer:

Step-by-step explanation:

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

Taking a as 4x

            b as 2y

            c as z

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

= 16x^2+4y^2+z^2+2(8xy+2yz+4xz)

=16x^2+4y^2+z^2+16xy+4yz+8xz

Hope this helps.✌

Answer 2

Step-by-step explanation:

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

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