2X^2-15=-1

Solution for 2X^2-15=-1 equation:

Simplifying
2X2 + -15 = -1

Reorder the terms:
-15 + 2X2 = -1

Solving
-15 + 2X2 = -1

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '15' to each side of the equation.
-15 + 15 + 2X2 = -1 + 15

Combine like terms: -15 + 15 = 0
0 + 2X2 = -1 + 15
2X2 = -1 + 15

Combine like terms: -1 + 15 = 14
2X2 = 14

Divide each side by '2'.
X2 = 7

Simplifying
X2 = 7

Take the square root of each side:
X = {-2.645751311, 2.645751311}