SOLUTION: We are doing Jacob's Algebra at home.
We are on Lesson 3 in Chapter 15
Set III Question 9 c
Here is what we have tried for days!
2x/x+5 - 3/x-2 = 1
First we multiplied both si
Question 5835: We are doing Jacob's Algebra at home.
We are on Lesson 3 in Chapter 15
Set III Question 9 c
Here is what we have tried for days!
2x/x+5 - 3/x-2 = 1
First we multiplied both sides by (x+5)(x-2) to get
2x^2-4x-3x+15=(x+5) (x-2)
2x^2-7x+15 = x^2=5x-2x-10
x^2-10x+25=0
When we did the quadratic formula to get the answer we got the answer of just 5
but the answer in the book is
10.48 and -.48
So then we tried
multiplying each side by (x^2 +10)
(we weren't sure if we should maybe do (x^2 - 10), which could also work)
and we got these answers 4.52 and -5.52
which are also wrong!
Please let us know what to multiply by to get the right answer!
Thanks!
We will be checking all the time for your response! Thanks so much!
Julie Cochran
julie-cochran@earthlink.net Answer by ichudov(507) (Show Source):
Text form: 2x*(x-2)-3*(x+5)=(x-2)*(x+5) simplifies to 0=0
Cartoon (animation) form: For tutors: simplify_cartoon( 2x*(x-2)-3*(x+5)=(x-2)*(x+5) )
If you have a website, here's a link to this solution.
DETAILED EXPLANATION
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