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September 23, 2014

September 23, 2014

Posted by **kiearra** on Sunday, December 28, 2008 at 1:50pm.

2x^2+x-15

- 11th grade -
**Reiny**, Sunday, December 28, 2008 at 1:56pmThis one also factors.

I gave you the previous one, why don't you try this, the factors are quite simple.

Let me know what you got.

- 11th grade -
**kiearra**, Sunday, December 28, 2008 at 2:07pmReiny i got

(x+5)(x-3)

x=-5 or x=3

- 11th grade -
**bobpursley**, Sunday, December 28, 2008 at 2:30pmNot quite. You have to get +2x^2

(2x-5)(x+3) ought to do it.

- 11th grade -
**Reiny**, Sunday, December 28, 2008 at 2:30pmnot quite,

did you notice that the first term was 2x^2, so one of the factors must have started with 2x

so it had to be (2x...)(x....)

YOu should have expanded your answer to see if you get the original question back.

I got (2x-5(x+3)= 0

then

x = 5/2 or x = -3

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