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

whosmans Oct 18, 2018

#1**0 **

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

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

ElectricPavlov Oct 18, 2018

#1**0 **

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

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

ElectricPavlov Oct 18, 2018