Solve 15c^2-11 - ScanMath

Evaluate

15 c^{2} - 11

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

15 c^{2} - 11 = 0

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

15 c^{2} = 0 + 11

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

15 c^{2} = 11

Divide both sides

\frac{15 c ^{2}}{15} = \frac{11}{15}

Divide the numbers

c^{2} = \frac{11}{15}

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

c = \pm \frac{11}{15}

Simplify the expression

More Steps

c = \pm \frac{165}{15}

Separate the equation into 2 possible cases

c = \frac{165}{15} c = - \frac{165}{15}

Solution

c_{1} = - \frac{165}{15}, c_{2} = \frac{165}{15}

Alternative Form

c_{1} \approx - 0.856349, c_{2} \approx 0.856349

Find the roots