Question

The trinomial x + bx + c factors to (x + m)(x + n). If b is negative and c is positive, what must be true about m and

n?
Om and n are both positive.
m is positive and n is negative.
mis negative and n is positive.
m and n are both negative.

Answer 1

M and n are both negative

Explanation:

m x n = c

mx + nx = bx

If b is negative, then we know at least M or N has to be negative.

But since C is positive and we know one has to be negative that means that the other also has to be negative because 2 negatives multiplied equal a positive