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Mathematics 19 Online
OpenStudy (anonymous):

is the answer to this 16x^2-9y^2 =16x^2+32xy-9y^2?

OpenStudy (owlfred):

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OpenStudy (anonymous):

ans is (4x-3y) (4x+3y)

OpenStudy (anonymous):

we get it as follows 16x^2 cab written as (4x)^2 and 9y^2 can be written as (3y)^2 so it becomes (4x)^2 - (3y)^2 Using the identity \[a ^{2} - b ^{2} = (a+b) (a-b)\] we get (4x+3y)(4x-3y)

OpenStudy (anonymous):

thank you sooooooooooo much

OpenStudy (anonymous):

most welcome.....

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