Asked by Nikki
Solve for x: (x/4)-(5/x)=(1/4)
Answers
Answered by
Reiny
how about multiplying each term by 4x ?
x^2 - 20 = x
x^2 - x - 20 = 0
solve for,
an easy one, it factors
x^2 - 20 = x
x^2 - x - 20 = 0
solve for,
an easy one, it factors
Answered by
Nikki
Wouldn't it be x^2-20=4 since (1/4)•4x= (4x/4)? So that means it would be x^2-24=0, right? Where would I go from there?
Answered by
Reiny
...since (1/4)•4x= (4x/4)?
yup, and what is 4x/4 ?
isn't that x ?
so you know how to factor simple trinomials?
x^2 - x - 20 = 0
(x-5)(x+4) = 0
so x = 5 or x = -5
check:
if x = 5
5/4 - 5/5 = 5/4 - 1 = 1/4 , check!
if x = -4
-4/4 - 5/-4
= -1 + 5/4 = 1/4 , check!
my answers are correct
yup, and what is 4x/4 ?
isn't that x ?
so you know how to factor simple trinomials?
x^2 - x - 20 = 0
(x-5)(x+4) = 0
so x = 5 or x = -5
check:
if x = 5
5/4 - 5/5 = 5/4 - 1 = 1/4 , check!
if x = -4
-4/4 - 5/-4
= -1 + 5/4 = 1/4 , check!
my answers are correct
Answered by
Nikki
Ay, my bad. Thanks :) and you mean x=5 or x=-4 right?
Answered by
Reiny
right, x = 5 and x = -4,
my bad, lol
my bad, lol
Answered by
Nikki
Haha its ok. Thanks for the help.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.