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Mathematics 7 Online
OpenStudy (anonymous):

Solve: x2 − 10x − 24 = 0. please help!!

OpenStudy (earthcitizen):

First, factorise x2 − 10x − 24 = 0 You get (x-12) (x+2) = 0. Find x

OpenStudy (anonymous):

-12 and 2..thank you!!

jimthompson5910 (jim_thompson5910):

More like 12 and -2

jimthompson5910 (jim_thompson5910):

So you were close

OpenStudy (earthcitizen):

yw

OpenStudy (anonymous):

ha yea i figured that out @jim_thompson5910 thanks :)

jimthompson5910 (jim_thompson5910):

alright, just wanted to be sure

OpenStudy (earthcitizen):

just incase, factorisation or quadratic formula can be used in the equation. However let's choose factorization Ask yourself what factors of -24 would give sum up to -10. As a result, -12 and 2 were perfect canditates. Where these procedures are not possible quadratic formula can come in. Just saying

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