Identify coefficients: Identify the coefficients a, b, and c in the quadratic expression 3w2+11w+6 by comparing it to the standard form ax2+bx+c.a=3b=11c=6
Find two numbers: Find two numbers that multiply to a∗c (3∗6=18) and add up to b (11).The two numbers that satisfy these conditions are 2 and 9 because 2∗9=18 and 2+9=11.
Rewrite middle term: Rewrite the middle term 11w using the two numbers found in the previous step.3w2+11w+6 can be rewritten as 3w2+2w+9w+6.
Group and factor: Group the terms into two pairs and factor by grouping.Group (3w2+2w) and (9w+6).Factor out the greatest common factor from each group.From (3w2+2w), factor out w: w(3w+2).From (9w+6), factor out 3: 3(3w+2).
Notice common factor: Notice that both groups now contain the common factor 3w+2. Write the expression as the product of this common factor and the other factors. The factored form is w+3)(3w+2.
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