Explaining Factored Form The trinomial x2 + bx - c has factors of (x + m) (x - n), where m, n, and b are positive. What is the relationship between the values of m and n? Explain.

The value of m must be greater than the value of n. When you multiply the binomials, the middle term is the result of combining the outside and inside products. So, bx = - nx + mx, or bx = ( - n + m) x. This means that b = - n + m. When adding numbers with opposite signs, you subtract their absolute values, and keep the sign of the number having the larger absolute value. Since b is positive, m must have the larger absolute value.