Question

Factorise:9/16-25a²b² ​

Answer 1

Answer:

( 3/4 + 5ab) (3/4 -5ab)

Step-by-step explanation:

9/16 -25a²b²

(3/4)² -(5ab)²

(3/4+5ab) (3/4-5ab)

Answer 2

Answer:

9 x^2 - 25 a^2 b^2

= 3^2 x^2 - 5^2 a^2 b^2

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

= (3x + 5ab)(3x - 5ab)

Step-by-step explanation:

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