SOLUTION: for what values of b will the quadratic equation x^2+bx+10=0 have no real roots?

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Question 244688: for what values of b will the quadratic equation x^2+bx+10=0 have no real roots?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+bx+10=0
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b^2-4ac is the discriminant. It can't be less than zero and have real roots.
a=1, c=10
b^2-40 discriminant
b^2= 40
b=+-2sqrt(10)
-2sqrt%2810%29%3Cb%3C2sqrt%2810%29 values of b with no real roots.
.
Ed