Question

expand the following by using the suitable
identifies. (x +2x+4z)^2

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Answer 1

Answer:

x2 + 4x + 8z . this is the answer or this question.

Answer 2

Solution:

Given:

(x +2y+4z)^2

We can use the identity (a+b+c)^2=a^2+b^2+c^2+2(ab+bc+ca)

So

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

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

Therefore solution is x^2+4y^2+16z^2+4xy+16yz+8xz