(6x-7y)2 simplify

We know,a-b2=a2-2ab+b2So,6x-7y2=6x2-26x7y+7y2=36x2-84xy+49y2    ANS...

  • -2
[a- b ] 2
= a2 - 2ab + b2 
a = 6x 
b = 7y
​ = 6x2 -42xy + 49y2
 
  • -1
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