I am having some trouble with these 3 quadratic equations. I need to solve for x.
x^4+2x^2-15=0
2(x-1)^2+7(x-1)+6=0
2x-9sqrt(x)+4=0
pistolpete wrote:x^4+2x^2-15=0
pistolpete wrote:2(x-1)^2+7(x-1)+6=0
pistolpete wrote:2x-9sqrt(x)+4=0
pistolpete wrote:Here's what I got for the first one,
x= i sqrt(5) and x=sqrt(3)
pistolpete wrote:For the second one, I can't seem to get the factors to add up to 7y (the middle term) so I'm stuck here
pistolpete wrote:For the last one, I also get stuck at factoring
pistolpete wrote:Wait I'm confused. For 2(x-1)^2+7(x-1)+6=0 shouldn't I be looking for factors of 6 and not 12?
And for, 2x-9sqrt(x)+4=0, don't i need factors of 4 and not 8 ?