Question 459334
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/l}}} = c^2
therefore
c = {{{sqrt(E/l)}}}