Solve x^2+9 - ScanMath

Calculator

Examples

DOWNLOAD FOR FREE

Example problems

Type your math problem... x^2+9

Question

Find the roots

x_{1} = - 3 i, x_{2} = 3 i

Evaluate

x^{2} + 9

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

x^{2} + 9 = 0

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

x^{2} = 0 - 9

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

x^{2} = - 9

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

x = \pm - 9

Simplify the expression

More Steps

Evaluate

- 9

Evaluate the power

9 \times - 1

Evaluate the power

9 \times i

Evaluate the square root

More Steps

Evaluate

9

Write the number in exponential form with the base of 3

3^{2}

Reduce the index of the radical and exponent with 2

3

3 i

x = \pm 3 i

Separate the equation into 2 possible cases

x = 3 i x = - 3 i

Solution

x_{1} = - 3 i, x_{2} = 3 i

Show Solution

English