Identify a, b, c: Identify a, b, and c in the quadratic expression 3m2+5m+2 by comparing it with the standard form ax2+bx+c.a=3b=5b0
Find two numbers: Find two numbers that multiply to a∗c (which is 3∗2=6) and add up to b (which is 5).The two numbers that satisfy these conditions are 2 and 3 because:2∗3=62+3=5
Rewrite middle term: Rewrite the middle term, 5m, using the two numbers found in the previous step to split it into two terms.3m2+5m+2 can be rewritten as:3m2+2m+3m+2
Factor by grouping: Factor by grouping. Group the first two terms together and the last two terms together, then factor out the common factor from each group.From 3m2+2m, factor out m:m(3m+2)From 3m+2, factor out 1:1(3m+2)Now we have:m(3m+2)+1(3m+2)
Factor out common binomial: Factor out the common binomial factor (3m+2) from both groups.(3m+2)(m+1)
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