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Simplify the expression given below x^2+x-2/x^3-x^2+2x-2

User Inforeqd
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2 Answers

4 votes

Answer:

The solution is
(x+2)/(x^2+2)

Step-by-step explanation:

See the image attached

Simplify the expression given below x^2+x-2/x^3-x^2+2x-2-example-1
User MarJamRob
by
5.5k points
4 votes

Answer:

The simplest form is
(x+2)/(x^2+2)

Step-by-step explanation:

The given is:
(x^2 + x-2)/(x^3-x^2+2x+2)

1- For the numerator:


x^2+x-2 can be factorized to give (x-1)(x+2)

2- For the denominator:


x^3-x^2+2x-2

We will factor this using grouping

Take
x^2 as a common factor from the first two terms and
2 as a common factor from the last two terms

This will give us:


x^3-x^2+2x-2
=x^2(x-1) + 2(x-1)

Now, take (x-1) as a common factor:


x^3-x^2+2x-2 = (x-1)(x²+2)

3- Finally, getting the simplest form:


(x^2+x-2)/(x^3-x^2+2x-2)=((x-1)(x+2))/((x-1)(x^2+2))=(x+2)/(x^2+2)

Hope this helps :)

User PyMaster
by
5.5k points