Solve x^2+1 - ScanMath

Evaluate

x^{2} + 1

To find the roots of the expression,set the expression equal to 0

x^{2} + 1 = 0

Move the constant to the right-hand side and change its sign

x^{2} = 0 - 1

Removing 0 doesn't change the value,so remove it from the expression

x^{2} = - 1

Take the root of both sides of the equation and remember to use both positive and negative roots

x = \pm - 1

Simplify the expression

x = \pm i

Separate the equation into 2 possible cases

x = i x = - i

Solution

x_{1} = - i, x_{2} = i

Find the roots