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Mathematics 20 Online
OpenStudy (anonymous):

x^2+2x-15=0. Find x?

OpenStudy (shubhamsrg):

rational root theorem ? ;)

OpenStudy (anonymous):

Could factorise ( ) ( ) = 0

OpenStudy (anonymous):

but what is the answer?

OpenStudy (shubhamsrg):

hit and trial might help if you dont wanna learn! o.O

OpenStudy (anonymous):

I want to solve by factorization method

OpenStudy (anonymous):

(x ) (x ) = 0 Does this give you an idea?

OpenStudy (anonymous):

oh yes (x+5) (x-3)=0. Is it right?

OpenStudy (anonymous):

Excellent , now either one of the brackets must be made to equal zero. What x values would do this ?

OpenStudy (anonymous):

i got it. x=3,-5

OpenStudy (anonymous):

Star !

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