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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+17283 
+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+17283 
+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

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