How to simplify (3x^2+5x-2)/(6x^3-17x^2-4x+3)? I'm given this algebraic fraction, and I'm asked to simplify it as much as possible: (3x^2+5x-2)/(6x^3-17x^2-4x+3)
ct1a2n4k
Answered question
2022-09-22
How to simplify ? I'm given this algebraic fraction, and I'm asked to simplify it as much as possible:
I applied Ruffini's Rule to find the roots of both the Numerator and Denominator. This helped me simplify the fraction to:
I tried to further simplify the factor , to no avail. I tried these two techniques: 1. I tried to find any possible roots, but neither nor are roots. 2. I tried to see if that is a perfect square in the form: , but it isn't. I'm not aware of any other way/technique that helps me simplify that expression. I'd just need a bit of your help. Thanks!
Answer & Explanation
Phoenix Morse
Beginner2022-09-23Added 10 answers
The factors that will allow you to simplify this fraction comes from the expression , and in order to factor this, you can do the following: consider pairs of -coefficients that will multiply to give and add to give . The pair that should catch your eye is and . Using this, the expression now becomes: which allows you to factor out two brackets independently like so:
hence your fraction becomes:
can you simplify this?
ye1neh4
Beginner2022-09-24Added 2 answers
It is possible to factor . First, we look for two numbers whose sum is 1 and whose product is −6. (In general, for , we would seek two numbers with sum b and product ac.) We find these numbers to be 3 and −2. We now "split the middle term", replacing "" with "":
The resulting expression we can "factor by grouping":
Applying this factorization, you see that your denominator now has a common factor with the numerator, which can be canceled.