SOLUTION: what is the solution to this problem 2x^2-(square root 7)x-10=0

Algebra ->  Algebra  -> Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: what is the solution to this problem 2x^2-(square root 7)x-10=0      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 101302: what is the solution to this problem
2x^2-(square root 7)x-10=0
Answer by stanbon(48545) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2-(square root 7)x-10=0
2x^2-(sqrt7)x-10=0
a=2, b= -sqrt7, c=-10
------------
x = [sqrt7 +- sqrt(7 - 4*1*-10)]/2
x = [sqrt7 +- sqrt(7 +40)]/2
x = [sqrt7 +- sqrt(47)]/2
x = 4.751 or x = -2.105
================
Cheers,
stan Y.