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Mathematics 10 Online
OpenStudy (anonymous):

This is a Quadratic Equation, solve it by factoring please. 0=3x^2-9x-12

OpenStudy (anonymous):

(3x -12)(x+1)

OpenStudy (anonymous):

x=4, -1

OpenStudy (anonymous):

thank you,how did you get that?

OpenStudy (anonymous):

I just factored it. Do you know how to use the criss-cross method?

OpenStudy (anonymous):

yahh i do

OpenStudy (anonymous):

but i usually use middle term decomposition

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