Solve 2u^2-90=0 where u is a real number.
Round your answer to the nearest hundredth.
If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution".
To solve the equation 2u^2 - 90 = 0, we need to isolate the variable u.
First, add 90 to both sides of the equation:
2u^2 - 90 + 90 = 0 + 90
2u^2 = 90
Next, divide both sides of the equation by 2:
(2u^2)/2 = 90/2
u^2 = 45
To solve for u, we need to take the square root of both sides of the equation:
√(u^2) = ±√45
u = ±6.71
Therefore, the solutions to the equation 2u^2 - 90 = 0 are u ≈ ±6.71.