SOLUTION: Hi Need help again. Does this equation x^2-10=0 have 1real solution 2imaginary solutions 2 real solutions Thanks Gina One more E=lc^2 solve for c

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Hi Need help again. Does this equation x^2-10=0 have 1real solution 2imaginary solutions 2 real solutions Thanks Gina One more E=lc^2 solve for c      Log On


   

Question 459334: Hi
Need help again.
Does this equation x^2-10=0 have
1real solution
2imaginary solutions
2 real solutions
Thanks
Gina
One more
E=lc^2 solve for c
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Does this equation x^2 - 10 = 0 have
1real solution
2imaginary solutions
2 real solutions
We can use the discriminant rules here, d = b^2 - 4*a*c
in this equation a=1, b=0, c= -10
d = -4*1*-10
d =+40, a greater than 0 value, therefore 2 real solutions, right?
:
E=lc^2 solve for c
divide both sides by l
E%2Fl = c^2
therefore
c = sqrt%28E%2Fl%29