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Mathematics 15 Online
OpenStudy (anonymous):

factor the trinomial completely x^2+2x-8

OpenStudy (amistre64):

how?

OpenStudy (anonymous):

(x+4)(x-2)

OpenStudy (amistre64):

and if i type it as: (x-8)(x+1) how do we know which is right?

myininaya (myininaya):

b/c __+__=___

OpenStudy (anonymous):

Your answer expands to x^2-7x-8

OpenStudy (amistre64):

yes it does :)

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