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Mathematics 20 Online
OpenStudy (anonymous):

y^3-11y^2+30y=0

OpenStudy (anonymous):

factor a y out of all three to start

OpenStudy (anonymous):

y(y^2-11y+30)=0 am i right so far?

OpenStudy (anonymous):

yes (you are solving for y I believe?)

OpenStudy (anonymous):

y(y-6)(y-5)=0

OpenStudy (anonymous):

y=0,-6,-5

OpenStudy (anonymous):

close

OpenStudy (anonymous):

you have the 0 correct (y-6) =0 solve

OpenStudy (anonymous):

(y-5) =0 solve

OpenStudy (anonymous):

5,6,0 correct?

OpenStudy (anonymous):

y-6=0 add 6 to both sides yes that's it

OpenStudy (anonymous):

good job

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