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Mathematics 15 Online
OpenStudy (anonymous):

Simplify pleaseee: x^2-5x+6/15xy^2 * 5xy^2/2x^2-7x+3

jimthompson5910 (jim_thompson5910):

x^2 - 5x + 6 factors to ______

OpenStudy (anonymous):

I have no idea... That's why I posted this up here :P

jimthompson5910 (jim_thompson5910):

find two numbers that multiply to 6 and add to -5 at the same time

OpenStudy (anonymous):

-3 and -2

jimthompson5910 (jim_thompson5910):

good, so x^2 - 5x + 6 factors to (x-3)(x-2)

jimthompson5910 (jim_thompson5910):

to factor 2x^2-7x+3, you need to multiply the first and last coefficients (2 and 3) to get 2*3 = 6 then you need to find two numbers that multiply to 6 and add to -7 at the same time those two numbers are ____ and ____

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