Solve d^213-1 - ScanMath

Evaluate

d^{2} \times 13 - 1

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

d^{2} \times 13 - 1 = 0

Use the commutative property to reorder the terms

13 d^{2} - 1 = 0

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

13 d^{2} = 0 + 1

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

13 d^{2} = 1

Divide both sides

\frac{13 d ^{2}}{13} = \frac{1}{13}

Divide the numbers

d^{2} = \frac{1}{13}

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

d = \pm \frac{1}{13}

Simplify the expression

More Steps

d = \pm \frac{13}{13}

Separate the equation into 2 possible cases

d = \frac{13}{13} d = - \frac{13}{13}

Solution

d_{1} = - \frac{13}{13}, d_{2} = \frac{13}{13}

Alternative Form

d_{1} \approx - 0.27735, d_{2} \approx 0.27735

Simplify the expression