Identify a, b, c: Identify a, b, and c in the quadratic expression 3f2+11f+6 by comparing it with the standard form ax2+bx+c. a=3 b=11 b0
Find Multiplying Numbers: Find two numbers that multiply to a∗c (3∗6=18) and add up to b (11).We need to find two numbers that satisfy these conditions.After checking possible pairs that multiply to 18 (such as 1 and 18, 2 and 9, 3 and 3∗6=180), we find that 2 and 9 are the numbers we are looking for because 3∗6=183 and 3∗6=184.
Rewrite Middle Term: Rewrite the middle term, 11f, using the two numbers we found, 2 and 9, to split it into two terms.3f2+11f+6 can be rewritten as 3f2+2f+9f+6.
Factor by Grouping: Factor by grouping. Group the first two terms together and the last two terms together.(3f2+2f)+(9f+6)Now factor out the common factors from each group.The common factor in the first group is f, and in the second group, it is 3.f(3f+2)+3(3f+2)
Factor out Common Factor: Notice that 3f+2 is a common factor in both groups. Factor out 3f+2. The factored form is f+3(3f+2).
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