factorise
9. 25p^2 - 9q^2
11. 25x^3y^3 – 49xy
13. a^ 2– (b - c)^2
15. (2a +3b)^2 - 4c^2
17. 16x^2 +9y^2 + 4z^2 + 24xy + 12yz + 16zx
19.4a^2 + b^2 + 25c^2 - 4ab - 10bc + 20ca
Anonymous:
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Answered by
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Answer is above mentioned.
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bhai jab answer hi post karna tha to post kyu kiya
factories kia hai
Are you don't know formula of factorisation.
I wrote the question and answer by formula .
Are you don't understand ?
wrong answer
you have to factorise . don't advise to copy answers from book
sorry to say that but my answer is right but without explanation .
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