Solve 22-2x^2/2 - ScanMath

Evaluate

22 - (2 \times \frac{x ^{2}}{2})

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

22 - (2 \times \frac{x ^{2}}{2}) = 0

Multiply the terms

More Steps

22 - x^{2} = 0

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

- x^{2} = 0 - 22

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

- x^{2} = - 22

Change the signs on both sides of the equation

x^{2} = 22

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

x = \pm 22

Separate the equation into 2 possible cases

x = 22 x = - 22

Solution

x_{1} = - 22, x_{2} = 22

Alternative Form

x_{1} \approx - 4.690416, x_{2} \approx 4.690416

Simplify the expression