Identify coefficients: Identify the coefficients a, b, and c in the quadratic expression 2f2+9f+9 by comparing it to the standard form ax2+bx+c.a=2, b=9, c=9
Find two numbers: Find two numbers that multiply to a∗c (2∗9=18) and add up to b (9).The numbers that satisfy these conditions are 3 and 6, since 3∗6=18 and 3+6=9.
Rewrite middle term: Rewrite the middle term 9f using the two numbers found in the previous step.2f2+9f+9 can be rewritten as 2f2+3f+6f+9.
Factor by grouping: Factor by grouping. Group the first two terms together and the last two terms together.(2f2+3f)+(6f+9)
Factor out common factor: Factor out the greatest common factor from each group.f(2f+3)+3(2f+3)
Final factored form: Since both groups contain the common factor (2f+3), factor this out.(f+3)(2f+3) is the factored form of the quadratic expression.
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