Group Terms: Look for common factors in pairs of terms.We will first group the terms into pairs and look for common factors in each pair.Group the terms: (7q3−7q2)+(9q−9).
Factor First Pair: Factor out the common factor from the first pair of terms.Factor out 7q2 from the first group: 7q2(q−1).
Factor Second Pair: Factor out the common factor from the second pair of terms.Factor out 9 from the second group: 9(q−1).
Write Findings: Write down what we have found so far.We have: 7q2(q−1)+9(q−1).Notice that (q−1) is a common factor in both terms.
Factor Common Factor: Factor out the common factor (q−1).Factor (q−1) out of both terms: (q−1)(7q2+9).
Check Further Factoring: Check for any further factoring possibilities.The second term 7q2+9 does not have any common factors and cannot be factored further.