SOLUTION: 2x^2+7x+15=0

Algebra ->  Test  -> Lessons -> SOLUTION: 2x^2+7x+15=0      Log On


   



Question 726996: 2x^2+7x+15=0
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2+7x+15=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(-7+-sqrt(7^2-4*2*15))/2*2
x=(-7+-sqrt(49-120))/4
x=(-7+-sqrt-71i)/4
x=(-7+-8.426i)/4
x=(-7+8.426)i/4
x=-7/4+8.426i/4
x=-1.75+2.1065i ans.
x=(-7-8.426i)/4
x=-7/4-8.426i/4
x=1.75-2.1065i ans.