Question

factorise 9x^2-(3x4y)^2$9x^{2} -(3x + 4y)^{2}$

Answer 1

Answer:

9x

2

−24xy+16y

2

⇒

(3x−4y)

(3x−4y)

2

Since we know

(a−b)

2

=a

2

+b

2

−2ab

⇒3x−4y