Math

Solve: x^-2 - x^-1= 5/4

I have the answer as (5+/- sqrt29)/2

Is this right?

  1. 👍 0
  2. 👎 0
  3. 👁 105
asked by Shawn
  1. no
    I multiplied all terms of your equation by 4x^2 to get
    5x^2 + 4x - 4 = 0

    using the formula gave me (-2 ±4√6)/5
    which verified upon substitution.

    you should have tried your answer in the original equation, it does not work.

    1. 👍 0
    2. 👎 0
    posted by Reiny
  2. I tried the equation and got

    (-2 �}2�ã6)/5

    Is this the answer?

    1. 👍 0
    2. 👎 0
    posted by Shawn

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra help

    Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?

    asked by Shawn on November 9, 2008
  2. Math Check

    Solve: x^-2 - x^-1= 5/4 I have the answer as (5+/- sqrt29)/2 Is this right?

    asked by Shawn on November 9, 2008
  3. calc

    A B< -7,12> Find AB in component from and the magnitude? (2,5) component so so sqrt29 magnitude of the vector?Is this correct?

    asked by Anonymous on April 26, 2018
  4. Algebra 2(check) cont..

    1)solve the inequality -3(r-11)+15>_9 my answer = r

    asked by erin on July 21, 2007
  5. Algebra II

    Please check the following: Solve log4(m-3)+ log4(m+3) =2 Answer: 1 Solve 6^3n=43^5n-4 Answer: 1.1202 Solve 5^2x+1>=50 Answer:x>=4.5000 Use common logarithms to approximate log9(207) to four decimal places. Answer: 2.4270 Ealuate:

    asked by Lucy on March 29, 2008
  6. Algebra II

    Please check answers: Use the equation of the exponential function whose graph passes through the points (0,-2) and (2,-50) to find the value of y when x= -2. My answer: -2/25 Solve 64^x/=5/2 Thanks.

    asked by Lucy on March 29, 2008
  7. Math

    Solve each system of linear equations. 1/ y=2x_3 y_2x=_3 Answer: 0=0 2/ 3x+y=4 _3x=y_7 Answer: 0=3 or 0=11 3/ y=_4x+1 4x=_y_6 answer: 0=5 or 0=7 4/ Y_x+3=0 X=y+3 answer: 0=0 Please,if the answers were wrong, helpe me for solve

    asked by Jen on September 24, 2018
  8. Algebra 2 (check)

    I have some problems that I've answered and I need someone to check to see if I'm right. Im just posting the questons and my answer,if its wrong I'll post my work,so here it is bear with me please and thank you. 1)name which sets

    asked by erin on July 21, 2007
  9. math 12

    i got the wrong answer from the back, and i know that imnot dooing it right. please try to help me on this hard question. THE ANSWER WAS:16 solve the equation: 3log(x-15)= (1/4)^x i don't know how to solve it algerbrically. the

    asked by kajal on June 2, 2011
  10. Algebra 1

    Can someone please check my answers? Thank You 1) Find an equivalent expression without parenthesis -(y+87) Answer: -y-87 3) Solve -3x-13x=96 answer: x= -6 4) Find the decimal notation 14/25 Answer: .56 5) Divide if possible 7/0

    asked by deedee on November 5, 2008

More Similar Questions