Identify coefficients: Identify the coefficients of the trinomial.The trinomial is 3x2+5x+2. Here, the coefficient of x2(a) is 3, the coefficient of x(b) is 5, and the constant term (c) is 2.
Find two numbers: Find two numbers that multiply to ac (3×2=6) and add up to b (5).We need to find two numbers that multiply to 6 and add up to 5. The numbers 3 and 2 satisfy these conditions because 3×2=6 and 3+2=5.
Rewrite middle term: Rewrite the middle term using the two numbers found in Step 2.We can express 5x as 3x+2x. So, the trinomial becomes 3x2+3x+2x+2.
Factor by grouping: Factor by grouping.Group the terms into two pairs: (3x2+3x) and (2x+2).Factor out the greatest common factor from each pair.From the first pair, we can factor out 3x, giving us 3x(x+1).From the second pair, we can factor out 2, giving us 2(x+1).
Factor common binomial: Factor out the common binomial factor.Both groups have a common factor of (x+1). Factor this out to get the final factored form.The factored form is (3x+2)(x+1).