Math, asked by manjubasnet2005, 10 months ago

Factorise it:
Please solve it step by stepppp....​

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Answers

Answered by subhashpatil320
0

Step-by-step explanation:

a.9x^2 - y^2

= 9( x*x )- y*y

= 3×3(x×x) - y × y

b.121x^2 - 1/ y^2

= 11×11(x × x) - 1/(y×y)

c.15/a^2 - 60a^2

= 3×5/(a×a) - 3×3×3×3×3×3×3×3×3×3×3×3×3×3×3×3×3×3×3×3(a×a)

d.ab^3 - 9a^3 b

= a( b×b×b) - 3×3 (a×a×a)b

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