Answer:
The answer is 8.
Step-by-step explanation:
We need to use the quadratic formula, that is ax2+bx+c=0
Where

For the given equation x2+5x-104=0 we have
a=1, b=5, c= -104
If you solve that, we will have x=-13. x=8, two answers,
The first one, by being negative does not have physical sense (there are no negatives quantities when you measure the length of something)
So we use the anwser x=8
Answer:
x^2+5x+6
Step-by-step explanation:
you foil for this so
first: x times x= x^2
outer: x times 2=2x
+
inner: 3 times x=3x
last: 3 times 2=6
so x^2+2x+3x+6
combine like terms
x^2+5x+6
Since she was saving 400, she would have to save 12.5% of her new paycheck.
4000x.1= 400
3200x.125=400