Question

Factorise
4x²+y²+z²+4xy-2yz-4xz​

Answer 1

Step-by-step explanation:

using identity

(a+b+c)²=a²+b²+c²2(ab+BC+CA)

so we know that there is minus sign in z so

(2x)²+(y)²+(-z)²+2(2x)(y)+2(y)(-z)+2(2x)(-z)

so

(2x+y-z)(2x+y-z)

so factorised

Answer 2

Answer:

(2x+y-z)^2 or (2x+y-z)(2x+y-z)

Step-by-step explanation:

For Explanation, Refer to the attachment.

I hope it helps you.

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