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Mathematics 18 Online
OpenStudy (anonymous):

x^2+19xy+60y^2

OpenStudy (anonymous):

Need help?

OpenStudy (anonymous):

yes!

OpenStudy (anonymous):

first of all what numbers can add to 19

OpenStudy (anonymous):

and what numbers can multiply to 60

OpenStudy (anonymous):

13 and 6?

OpenStudy (ranga):

If you are asked to factor the expression, write the middle term 19xy as 15xy + 4xy and then factor.

OpenStudy (ranga):

15 + 4 = 19 15 * 4 = 60

OpenStudy (anonymous):

is that short method?

OpenStudy (anonymous):

kind of

OpenStudy (anonymous):

now what you have to do is (x+15y)(x+4y) and done so

OpenStudy (anonymous):

when you do the foil x times x =x^2 right?

OpenStudy (anonymous):

yes! thank you

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