1.

Factories (4y²-12xy+9ײ)-4z² +(64ײ+49y²+112xy)​

Answer»

Answer:

16x

2

+4Y

2

+9z

2

16xy+12yz+24xz

Using (a+B+c)

2

=a

2

+b

2

+c

2

+2ab+2bc+2ac

=(4x)

2

+(2Y)

2

+(3z)

2

+2(4x)(2y)+2(2y)(3z)+2(4x)(3z)

=(4x+2y+3z)(4x+2y+3z)



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