Question

Expand(3x+2y square by using identity​

Answer 1

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 }

Answer 2

Answer:

(3x+2y)² = 9x² + 12xy + 4y²

Step-by-step explanation:

(3x+2y)² = (3x)² + 2(3x)(2y) + (2y)²

By using identity , (a+b)² = a² + 2ab + b²

= 9x² + 12xy + 4y²

hope it helps...