Identify coefficients: Identify the coefficients of the trinomial. The trinomial is 2x2+13x+20. Here, the coefficient of x2(a) is 2, the coefficient of x(b) is 13, and the constant term (c) is 20.
Find numbers for multiplication: Find two numbers that multiply to ac (2×20=40) and add up to b (13).We need to find two numbers that multiply to 40 and add up to 13. The numbers 5 and 8 satisfy these conditions because 5×8=40 and 5+8=13.
Rewrite middle term: Rewrite the middle term using the two numbers found in Step 2.We can express 13x as the sum of 5x and 8x. So, the trinomial becomes 2x2+5x+8x+20.
Factor by grouping: Factor by grouping.We group the terms as follows: 2x2+5x + 8x+20. Now, we factor out the greatest common factor from each group.From the first group, we can factor out an x, giving us x(2x+5).From the second group, we can factor out a 4, giving us 4(2x+5).
Factor out common binomial: Factor out the common binomial factor.Both groups now contain the common binomial factor (2x+5). Factoring this out, we get (2x+5)(x+4) as the factored form of the trinomial.