The expression x^2- x + 8.75 factors as (x + 2.5)(x - a) for some positive value "a". What is a? step by step, please.

3.5

Step-by-step explanation:

Write out quadratic

We are given that x+2.5 is a factor.

So our roots look like

Let apply the foil method to find some missing parts.

We know that the outer terms must multiply to 8.75. We also know that the middle terms must add up to -1.

The only number that satisfy this equation is

Since it already negative, it is

3201

step-by-step explanation:

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant