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OpenStudy (anonymous):
r^2+13r-30=0 what do you do after (r+15)(r-2)=0 ? thanks
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OpenStudy (lalaly):
r=-15 , r=2
OpenStudy (anonymous):
r+15=0 or r-2=0 since multiplication
OpenStudy (anonymous):
sorry don't understand step by step with this equation please thanks
OpenStudy (anonymous):
r^2+13r-30=0,(r+15)(r-2)=0, r+15=0 or r-2=0, r=-15 or r=2
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