Question

9x^y^-16 factorise expression​

Answer 1

a^2-b^2 = (a+b)(a-b)

Step-by-step explanation:

9x^2y^2-16

= (3xy)^2-(4)^2

= (3xy+4)(3xy-4)

Answer 2

answer

=(3x−4y)(3x+4y)

explanation=

9x^2-16y^29x

2

−16y

2

we have to factorize the above equation.

9x^2-16y^2=(3x)^2-(4y)^29x

2

−16y

2

=(3x)

2

−(4y)

2

By the identity

a^2-b^2=(a-b)(a+b)a

2

−b

2

=(a−b)(a+b)

Put a=3x and b=4y

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

2

−(4y)

2

=(3x−4y)(3x+4y)

which is required solution.