<PRE><B>Question 177130</B>
Write prime if the expression cannot be factored: 20y^2-33y+10
Think of two numbers whose procuct is ac = 20*10 = 200
and whose sum is -33
The numbers are -25 and -8
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Rewrite the problem as follows:
20y^2 - 25y - 8y + 10
Factor the 1st two and the last two terms separately:
5y(4y-5) - 2(4y-5)
Factor again:
(4y-5)(5y-2)
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Cheers,
Stan H.</PRE>