SOLUTION: Caso de trinomio de la forma x2 + bx + c. Factorizar: b. x^2+2xy-15y^2

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Question 782036: Caso de trinomio de la forma x2 + bx + c. Factorizar:

b. x^2+2xy-15y^2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
-15y%5E2=-3y%2A5y, -15y%5E2=3x%2A%28-5%29y

Arregle estos dos tratemientos:

(x-3y)(x+5y)
Y
(x+3y)(x-5y)

Cual se sirve?