Question

Expand : ( 2x + 3y ) ²

4x² + 6xy + 9y²

4x² + 12xy + 9y²

4x² - 12xy + 9y²

Use the formula to multiply the following : ( 3x - 5 ) ( 3x + 5 )
Please answer urgently 9x²+25
9x² - 25
6x² - 10​

Answer 1

Answer

2x +3y ×2x +3y

Hope this Information is enough for you!

Answer 2

Step-by-step explanation:

( 2x + 3y ) ² = (2x)^2 + (3y)^2 +2×2x × 3y

( 2x + 3y ) ² = 4x² + 12xy + 9y²

Q2.

( 3x - 5 ) ( 3x + 5 ) = (3x)^2 -(5x)^2

( 3x - 5 ) ( 3x + 5 ) =9x² - 25