Posted by Angie on Tuesday, May 5, 2009 at 5:42pm.
What do you get when you factor 2q^2+22q=-60?
Is there more than one answer possible?
I got 2 answers:
- Math - Damon, Tuesday, May 5, 2009 at 6:41pm
Your two answers are both:
- Math - Angie, Tuesday, May 5, 2009 at 9:09pm
on a test, if i put one of the answers i put above, would i still get it right?
- Math - RickP, Tuesday, May 5, 2009 at 11:26pm
You should factor out the GCF.
2q^2 + 22q = -60
2q^2 + 22q + 60 = 0
2(q^2 + 11q + 30) = 0
now divide both sides by 2
q^2 + 11q + 30 = 0
(q + 6)(q + 5) = 0
if 2 numbers multiplied together = 0 then one or both factors must be 0.
q + 6 = 0 and/or q + 5 = 0
q = -6 and/or q = -5
Plug in the 2 possible answers and see if one or both of them work.
- Math - Angie, Wednesday, May 6, 2009 at 5:05pm
would i still get it right if i didn't factor out the gcf?
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