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if (y-3 ) is a factor of y3- 2y2 - 9y +18 then find other two factors?...
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y-3 (y3-2y2-9y+18)y2+y-6
y3-3y2
__-__+_
y2-9y+18
y2-3y
_-__+____
-6y+18
-6y+18
__+__-__
___0___
y2+y-6
y2+3y-2y-6
y (y+3)-2(y+3)
y-2 and y+3 are the factors
y-2=0
y=2
y+3=0
y= -3
y3-3y2
__-__+_
y2-9y+18
y2-3y
_-__+____
-6y+18
-6y+18
__+__-__
___0___
y2+y-6
y2+3y-2y-6
y (y+3)-2(y+3)
y-2 and y+3 are the factors
y-2=0
y=2
y+3=0
y= -3
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hope this helps you.......
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