famegfx wrote:Quadratic equations: solve these please?
cant do it 4 U (dont want 2 get banned!):
viewtopic.php?f=21&t=6famegfx wrote:3/x - 4/x+1 = 1
not a quad! is this 3/x-4/(x+1)=1?
then times by x(x+1): 3(x+1)-4(x)=1x(x+1)
times it out & plug into quad formula:
http://www.purplemath.com/modules/quadform.htmfamegfx wrote:x - x/x+1 = 2
not a quad: is this x-x/(x+1)=2?
then time thru by x+1: x(x+1)-x=2(x+1)
times out & solve like last prob
famegfx wrote:(x+2/x)^2 -7(x+2/x) +12 = 0
this is like "weird case" here:
http://www.purplemath.com/modules/factquad4.htmdo X^2-7X+12=0
then do X=(x+2/x)=(whatever ans U got)
solve for x
rite back if Ur stuck
thnx