Question

Expand the following:- (3x-4y) whole square 3​

Answer 1

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 :-)