Solve r^214-1 - ScanMath

Evaluate

r^{2} \times 14 - 1

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

r^{2} \times 14 - 1 = 0

Use the commutative property to reorder the terms

14 r^{2} - 1 = 0

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

14 r^{2} = 0 + 1

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

14 r^{2} = 1

Divide both sides

\frac{14 r ^{2}}{14} = \frac{1}{14}

Divide the numbers

r^{2} = \frac{1}{14}

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

r = \pm \frac{1}{14}

Simplify the expression

More Steps

r = \pm \frac{14}{14}

Separate the equation into 2 possible cases

r = \frac{14}{14} r = - \frac{14}{14}

Solution

r_{1} = - \frac{14}{14}, r_{2} = \frac{14}{14}

Alternative Form

r_{1} \approx - 0.267261, r_{2} \approx 0.267261

Simplify the expression