SOLUTION: How do you solve 2x^-2 - x^-1 - 1 = 0? I need to get rid of the negative exponents and then solve using the quadratic formula. I am not sure of how to do this.

Algebra.Com
Question 324887: How do you solve 2x^-2 - x^-1 - 1 = 0? I need to get rid of the negative exponents and then solve using the quadratic formula. I am not sure of how to do this.
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Since and , this means that can be rewritten as


Now multiply EVERY term by the LCD to get . From there, rearrange the terms to get and multiply every term by -1 to get . I'll let you use the quadratic formula to solve.

RELATED QUESTIONS

I need to solve for x using the quadratic formula. How do I do this? 0 = (-100/(1+x)) (answered by longjonsilver)
I need help with this Quadratic Equation: Solve using the square root property:... (answered by stanbon)
I need to be shown the steps to solve this problem.... x - (12/x) = 1 Also, in... (answered by solver91311)
This involves negative exponents and "equations quadratic in form." The equation is:... (answered by ikleyn,MathTherapy)
Change the rational equation to quadratic form and solve it by the most efficient method. (answered by jim_thompson5910)
x^2/4 - x/2 - 1 = 0 how do i get rid of the... (answered by jim_thompson5910)
Hi, Please help me solve this equation involving negative rational exponents: {{{... (answered by ikleyn)
Please help me solve this problem. Make sure to superscript all exponents. All... (answered by eperette)
can you help me solve and graph {{{1/2x - 2/3y=-6}}} so far i tried y intercept=C/B and i (answered by checkley71)