To solve the equation -2x^2 - 1 = 0, first add 1 to both sides:
-2x^2 = 1
Next, divide by -2:
x^2 = -1/2
Take the square root of both sides:
x = ±√(-1/2)
The square root of a negative number is imaginary, so the solution is:
x = ± i√(1/2)
x = ± (1/√2)i
Therefore, the solutions are x = (1/√2)i and x = -(1/√2)i.
-2x^2 - 1 = 0
1 answer