SOLUTION: Hi, I was working on the problem x^2+2x-15=0 and when I simplified, I got to x^3=7.5. I was wondering how, since this is a quadratic equation, you recieve that into two answers ins

Algebra.Com
Question 893932: Hi, I was working on the problem x^2+2x-15=0 and when I simplified, I got to x^3=7.5. I was wondering how, since this is a quadratic equation, you recieve that into two answers instead of one. Thank you!
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39625)   (Show Source): You can put this solution on YOUR website!
What's with ?

Can you factor the quadratic expression?
?


OR .
Answer by MathTherapy(10555)   (Show Source): You can put this solution on YOUR website!

Hi, I was working on the problem x^2+2x-15=0 and when I simplified, I got to x^3=7.5. I was wondering how, since this is a quadratic equation, you recieve that into two answers instead of one. Thank you!


For starters, . I have no idea how you got 7.5!! 

RELATED QUESTIONS


I was wondering how to show my work on a problem when... (answered by edjones,Mathtut)

hi. i have a test coming up and i was wondering if you could check this problem for me. 
 (answered by richwmiller)

Hi I need help with these questions:

1.  -9+i/-9-3i       I divided the num and dem by  (answered by jim_thompson5910)

Hi, I was wondering. How would this be solved I don't uderstand how to do this kind of... (answered by Alan3354)

I have been working on this math problem and I got to working on it.  Well, then I got... (answered by stanbon)

Hi, I'm working on Systems of Equations and I'm trying to solve this problem:
2x+3y=5... (answered by jim_thompson5910)

Hi I have to solve the following rational inequality:
2/x+1 <= 4/x-3
The first thing I... (answered by ewatrrr,richwmiller)

Hi I was wondering for the problem 3/15+2/5, since the GCF of 3 and 15 is 3, how do you... (answered by josgarithmetic)