Identify Common Factor: Look for a common factor in all terms.Check if there is a greatest common factor (GCF) that can be factored out from all the terms in the polynomial 14n3−7n2−20n+10.The GCF of 14n3, 7n2, 20n, and 10 is 1, so there is no common factor to factor out.
Grouping for Factoring: Group terms to facilitate factoring by grouping. Group the terms into two pairs: (14n3−7n2) and (−20n+10). Now, factor out the GCF from each pair. For the first pair, the GCF is 7n2, so factor it out: 14n3−7n2=7n2(2n−1). For the second pair, the GCF is −10, so factor it out: −20n+10=−10(2n−1).
Write Factored Form: Write the factored form of the polynomial.Now we have:7n2(2n−1)−10(2n−1).Notice that (2n−1) is a common factor in both terms.Factor out (2n−1) from both terms:14n3−7n2−20n+10=(2n−1)(7n2−10).
Check Quadratic Factor: Check if the quadratic factor can be factored further.The quadratic factor 7n2−10 does not factor nicely over the integers, and there is no obvious way to factor it further.Therefore, the factored form of the polynomial is:(2n−1)(7n2−10).