Math, asked by Andy1111112, 1 year ago

factorise 20x^2 -45y^2

Answers

Answered by viva1

31

The answer is 5(2x+3y)(2x-3y)

Andy1111112: i know

Andy1111112: i want steps

Answered by aniketpruthvi

92

20x^2-45y^2

=5(4x^2-9y^2)

=5[(2x)^2-(3y)^2]

=5(2x-3y)(2x+3y)

hope it helps :-)

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