Identify Common Factors: Look for common factors in each pair of terms.We can group the terms as (7y3+14y2) and (9y+18) to look for common factors within each group.
Factor First Group: Factor out the common factor from the first group.The common factor in the first group 7y3+14y2 is 7y2.7y3+14y2=7y2(y+2)
Factor Second Group: Factor out the common factor from the second group.The common factor in the second group 9y+18 is 9.9y+18=9(y+2)
Write Factored Form: Write the factored form of the entire expression.Now we have:7y3+14y2+9y+18=7y2(y+2)+9(y+2)Notice that (y+2) is a common factor in both terms.
Factor Out Common Factor: Factor out the common factor (y+2).Factor out (y+2) from both terms.7y3+14y2+9y+18=(y+2)(7y2+9)
Check for Further Factoring: Check if the second factor (7y2+9) can be factored further.The second factor (7y2+9) does not have a common factor and is not a difference of squares, so it cannot be factored further.