## minnie123 Group Title ***Help Wanted*** ***Medal and Fan Earned*** *** Attachment Below*** one year ago one year ago

1. minnie123 Group Title

2. surdawi Group Title

you want help or the answer?

3. minnie123 Group Title

how do you find the extraneous root? I need help finding it

4. minnie123 Group Title

@surdawi

5. surdawi Group Title

cross multiply |dw:1352736853722:dw|

6. minnie123 Group Title

done... is this how i find the extraneous root?

7. minnie123 Group Title

8. surdawi Group Title

y = 5 is correct

9. minnie123 Group Title

i only need help finding the EXTRANEOUS ROOT

10. Zekarias Group Title

$\frac{ 1 }{ y-1 }=\frac{ 2 }{ y+2 }....where...y \neq1 ,-2$$2(y-1)=y+2$$2y-2=y+2$$y=4$

11. amistre64 Group Title

EXTRAneous roots are roots that are introduced as a byproduct of running thru the algebra. they are values which can be produced thru the algebraic manipulations but are not accepted as solutions to the problem

12. Zekarias Group Title

Thus the answers will be y= 1 and y = -2?

13. minnie123 Group Title

how do yu identify if i have any in this problem?

14. amistre64 Group Title

extra roots tend to be the result of needing to square something to produce an outcome. 2y-4 = y+1 only has one solution, when y=5