We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
160
1
avatar+472 

1. Show that the answer when simplifying the following expression: 2x-8 / x^2-6x+8 has the same value when x = 0. Explain how this is helpful

 Oct 18, 2018

Best Answer 

 #1
avatar+18368 
+2

2(x-4) / ( x-4)(x-2)

2/(x-2)        when x = 0        2/-2 = -1

 

Substitute '0' for x in the original equation

-8/8 = -1                                                           Yup, they are equal   cheeky

 

It is helpful because it 'simplifies' the calculation(s) involved.....there are less chance for errors.

 Oct 18, 2018
edited by ElectricPavlov  Oct 19, 2018
 #1
avatar+18368 
+2
Best Answer

2(x-4) / ( x-4)(x-2)

2/(x-2)        when x = 0        2/-2 = -1

 

Substitute '0' for x in the original equation

-8/8 = -1                                                           Yup, they are equal   cheeky

 

It is helpful because it 'simplifies' the calculation(s) involved.....there are less chance for errors.

ElectricPavlov Oct 18, 2018
edited by ElectricPavlov  Oct 19, 2018

13 Online Users

avatar