Question

factorise 25a²-64b²​

Answer 1

Answer:

the answer is

-39(ab)^2

Answer 2

Answer:

25$a^{2}$ - 64$b^{2}$

using identity $a^{2} - b^{2} = (a+b)(a-b)$

⇒(25a+64b)(25a-64b)

Hence factorized

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