Question 127178
what are the roots of the equation 2x^2-5=0.
:
2x^2 - 5 = 0
:
2x^2 = +5; added 5 to both sides
:
x^2 = {{{5/2}}}; divided both sides by 2
:
x = {{{+sqrt(5/2)}}}; find the square root of both sides
and
x = {{{-sqrt(5/2)}}}