Question

81x²-36y² factorise the following​

Answer 1

Answer:

Hey mate! here is your answer

81x^2 - 36y^2

= (9x)^2 - (6y)^2

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

= (9x+6y) (9x-6y) answer.

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Answer 2

I hope it helps you ............