Asked by carly

(x - 5)(-.025x + 220)

Is the answer -.025x^2 + 220x - 1100

OR

-.025x^2 + 219.875x - 1100

I keep getting the first answer but in class the teacher said the answer was the second one and I'm getting frustrated because I can't get the second one!
Answered by CodyJinks
So to multiply this out (x-5)(-.025x +220)

X*-.025x, x*220, 5*-.025x, -5*220

-.025x^2 + 219.875x -1100

I am pretty sure the middle term should be 221.125x because you can’t decide when to/not include the negative sign before the five.
Answered by Reiny
oh dear....

(x - 5)(-.025x + 220)
= -.025x^2 + 220x + .125x - 1100
= -.025x^2 + 220.125x - 1100
Answered by carly
REINY --

I'm sorry - yes, that is what I keep getting too -- I had sooooo many answers written down all over my paper and then I typed the wrong one - thank you!
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