Expand(3x+2y square by using identity – InterviewSolution

1.

Expand(3x+2y square by using identity

Answer»

Answer:

9x² + 4y² – 12xy

Step-by-step explanation:

( 3X – 2Y )²

= ( 3x )² + ( 2y )² – 2 ( 3x ) ( 2y )

= 9x² + 4y² – 12xy

{ Using Identity ( a – b )² = a² – b² – 2ab }

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