factorise 27x^2-12y^2
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u use the formula x square - y square .
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Answered by
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Heya....
factorise
= 27x^2-12y^2
= 3(9x^2-4y^2)
As we know that-
a^2-b^2 = (a+b)(a-b)
So,
= 3{(3x)^2-(2y)^2}
= 3(3x+2y)(3x-2y)
thankyou buddy.
HOPE it helps U. :-)
factorise
= 27x^2-12y^2
= 3(9x^2-4y^2)
As we know that-
a^2-b^2 = (a+b)(a-b)
So,
= 3{(3x)^2-(2y)^2}
= 3(3x+2y)(3x-2y)
thankyou buddy.
HOPE it helps U. :-)
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