Expand ( -2x + 3y + 3z ) ^2 by using suitable identity class 9

1.	Expand ( -2x + 3y + 3z ) ^2 by using suitable identity class 9
Answer» Answer: We KNOW appropriate IDENTITY (x+y+z)2=x2+y2+z2+2xy+2yz+2xz. =x2+(2Y)2+(4Z)2+2(x)(2y)+2(2y)(4z)+2(x)(4z) =x2+4y2+16z2+4xy+16yz+8xz.

Answer»

Answer:

We KNOW appropriate IDENTITY (x+y+z)2=x2+y2+z2+2xy+2yz+2xz.

=x2+(2Y)2+(4Z)2+2(x)(2y)+2(2y)(4z)+2(x)(4z)

=x2+4y2+16z2+4xy+16yz+8xz.

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Expand ( -2x + 3y + 3z ) ^2 by using suitable identity class 9​

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Expand ( -2x + 3y + 3z ) ^2 by using suitable identity class 9