Posted by jessica on Sunday, December 7, 2008 at 11:41am.
having a hard time with a couple of problems please help
(3x+5)^2+8=0
also
69=12 divided by y+5 y5 y^225

algebra  bobpursley, Sunday, December 7, 2008 at 12:10pm
On the first, two ways...
Let me do the easiest. Notice that the first term for real x will always be positive, and the second term is positive, the sum is zero. So there are no real x.
(3x+5)^2=8
take the square root of each side..
3x+5=sqrt (8)= 2i sqrt2
then solve for x. It will be a complex number.
Second
Multiply both sides by (y^225)
6(y5)9(y+5)=12
multiply out, gather terms and solve for y.

algebra  jessica, Sunday, December 7, 2008 at 12:39pm
Thank you very much
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