Identify coefficients: Identify the coefficients a, b, and c in the quadratic expression 9w2+11w+2 by comparing it to the standard form ax2+bx+c.a=9, b=11, c=2
Find two numbers: Find two numbers that multiply to a∗c (9∗2=18) and add up to b (11).The numbers that satisfy these conditions are 9 and 2 because 9∗2=18 and 9+2=11.
Rewrite middle term: Rewrite the middle term 11w using the two numbers found in the previous step.9w2+11w+2 can be rewritten as 9w2+9w+2w+2.
Group terms: Group the terms into two pairs: 9w2+9w and 2w+2.
Factor out common factor: Factor out the greatest common factor from each pair.From the first pair 9w2+9w, factor out 9w to get 9w(w+1).From the second pair 2w+2, factor out 2 to get 2(w+1).
Write factored form: Notice that both groups now have a common factor of (w+1).Write the expression as the product of this common factor and the factors found in the previous step.The factored form is (9w+2)(w+1).
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