To solve for x, we need to isolate x on one side of the equation.
Starting with:
17 = 2x^2 - 1
Add 1 to both sides:
17 + 1 = 2x^2 - 1 + 1
18 = 2x^2
Divide both sides by 2:
18/2 = 2x^2 / 2
9 = x^2
Take the square root of both sides to solve for x:
√9 = √x^2
3 = x
Therefore, the solution is x = 3.
17 = 2x^2 - 1
1 answer