Question

factorise 9x^2-y^2??????
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Answer 1

Answer:

$\boxed{\bf\implies (3x - y)(3x + y)}$

Step-by-step explanation:

$\bf\red{ {9x}^{2} - {y}^{2} } \\ \\ \bf\implies {(3x)}^{2} - {(y)}^{2} \\ \\ \boxed{\bf\implies (3x - y)(3x + y)}$

Answer 2

Answer:

Answer=>

(3x-y)(3x+y)

Step-by-step explanation:

9x^2-y^2

(3x)^2-(y)^2

we know that:-

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

hence,

your answer will be

(3x-y)(3x+y)

Hope this helps you.