SOLUTION: which of the following is a factor of 15y^2 -81y + 30 ? a y+5 b 5y-2 c 5y+2 d 5y-6 e 5y+6

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Question 252433: which of the following is a factor of 15y^2 -81y + 30 ?
a y+5 b 5y-2 c 5y+2 d 5y-6 e 5y+6
Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
15y^2 -81y + 30 = 15y^2 - 75y-6y+30
= 15y(y-5)-6(y-5)
= (y-5)(15y-6)
= 3(y-5)(5y-2)
So (5y-2) is a factor