SOLUTION: Find all real or imaginary solutions to this equation: x^-2-9x^-1+18=0 I am no sure really where to start whether I should square the entire problem or what I am stumped. Pl

Question 92542This question is from textbook
: Find all real or imaginary solutions to this equation:
x^-2-9x^-1+18=0
I am no sure really where to start whether I should square the entire problem or what I am stumped. Please help!! This question is from textbook

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x^-2-9x^-1+18=0
It's a quadratic; the variable is x^-1.
Factor to get:
(x^-1-6)(x^-1-3) = 0
Since the product is zero one of the factors must be zero.
x^-1 = 6 or x^-1 = 3
Invert both sides to get:
x = 1/6 or x=1/3
===============
Cheers,
Stan H.
RELATED QUESTIONS
Find all real or imaginary solutions to each equation. x^-2 - 9x^-1 + 18 =... (answered by stanbon)

Please help. I am stuck with this problem. Find all real or imaginary solution to the... (answered by jai_kos)

I wasn't sure where to put this. Consider only the discriminant, b^2-4ac, to determine (answered by math-vortex)

I need help to find all real or imaginary solutions to each equation. -x^2 + x + 12 =... (answered by jim_thompson5910)

i do not knwo how to solve this can some one please assist me thank you 52. 2y^2 � 3y... (answered by jai_kos,FadelSalem)

how do i find imaginary answers??? Find all real or imaginary solutions to each... (answered by tutorcecilia)

Please help me! Find all real numbers or imaginary solutions to each equation.... (answered by rapaljer)

I have to find all the real number solutions of: x^3-216=0 but I am not sure how to (answered by ankor@dixie-net.com)

This problem says to find all real and imaginary solutions. I don't even know were to... (answered by Alan3354)