Expand the following:- (3x-4y) whole square 3
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Answer:
9 x² + 16 y² + 24 x y
Step-by-step explanation:
Remember :
( a + b )² = a² + b² + 2 ab
Using the above :
( 3 x + 4 y )² = ( 3 x )² + ( 4 y )² + 2 × 3 x × 4 y
= 9 x² + 16 y² + 24 x y
This is the answer
Hope it helps :-)
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