Question

9(x+y)² - x² FACTORISE IT ​

Answer 1

Answer:

Let's simplify step-by-step.

9(x+y)2−x2

Distribute:

=9x2+18xy+9y2+−x2

Combine Like Terms:

=9x2+18xy+9y2+−x2

=(9x2+−x2)+(18xy)+(9y2)

=8x2+18xy+9y2

Answer:

=8x2+18xy+9y2

Answer 2

Answer:

(4x+3y)(2x+3y)

Step-by-step explanation:

9(x+y)² - x²

= 9(x+y)(x+y) - x²

= 9(x²+2xy+y²) - x²

= 9x² + 18xy + 9y² - x²

= 8x² + 18xy + 9y²

= (4x+3y)(2x+3y)