Factories:4x2 – 9y2

We have,4x2 – 9y2= (2x)2 – (3y)2By using the formula a2 – b2 = (a + b)(a – b)We get,4x2 – 9y2 = (2x)2 – (3y)2= (2x + 3y)(2x – 3y)

Q4 of 137 Page 100

Factories:
4x² – 9y²

We have,

4x² – 9y²

= (2x)² – (3y)²

By using the formula a² – b² = (a + b)(a – b)

We get,

4x² – 9y² = (2x)² – (3y)²

= (2x + 3y)(2x – 3y)

Factories:

4a² – 9

Factories:

81 – 49x²

Factories:

16a² – 225b²

Factories:

9a²b² – 25