SOLUTION: This is from a worksheet. I cannot figure this one out at all.
y^3+5y^2-9y-45
The instructions are to factor completely.
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Question 87646: This is from a worksheet. I cannot figure this one out at all.
y^3+5y^2-9y-45
The instructions are to factor completely.
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
time to be a little sneaky then...
or...
so think about the 2 sets of terms, bracketed:
and you notice that both factorised terms have a common term which can be factorised out, giving us:
The first term is a difference of 2 squares so:
there you go :-)
cheers
Jon
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