1.

Find the following by using ldentity-2(iii) (7x/4-2y/3)^2​

Answer»

Step-by-step EXPLANATION:

ANSWER

(4X−2y−3z)

2

We KNOW that (X+y+z)

2

=x

2

+y

2

+z

2

+2xy+2yz+2xz

Here x=4x, y=-2y and z=-3z we get

(4x−2y−3z)

2

=(4x)

2

+(−2y)

2

+(−3z)

2

+2(4x)(−2y)+2(−2y)(−3z)+2(4x)(−3z)


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