Identify Coefficients: Identify the coefficients of the quadratic expression.The quadratic expression is in the form ax2+bx+c. For 2x2+13x+11, a=2, b=13, and c=11.
Find Multiplying Numbers: Find two numbers that multiply to a∗c (2∗11=22) and add up to b (13).We need to find two numbers that multiply to 22 and add up to 13. The numbers 2 and 11 satisfy these conditions because 2∗11=22 and 2+11=13.
Rewrite Middle Term: Rewrite the middle term using the two numbers found in the previous step.We can express 13x as the sum of 2x and 11x. So, the expression becomes 2x2+2x+11x+11.
Factor by Grouping: Factor by grouping.First, group the terms: 2x2+2x + 11x+11. Then, factor out the common factors from each group.From the first group, we can factor out 2x, giving us 2x(x+1).From the second group, we can factor out 11, giving us 11(x+1).
Write Factored Form: Write the factored form of the expression.Since both groups contain the factor (x+1), we can factor this out to get the final factored form of the expression: (2x+11)(x+1).
More problems from Factor quadratics with other leading coefficients