Solve x^2-17x-72 - ScanMath

Evaluate

x^{2} - 17 x - 72

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

x^{2} - 17 x - 72 = 0

Substitute a= 1,b= - 17 and c= - 72 into the quadratic formula x = \frac{- b \pm b ^{2} - 4 a c}{2 a}

x = \frac{17 \pm ( - 17 ) ^{2} - 4 ( - 72 )}{2}

Simplify the expression

More Steps

x = \frac{17 \pm 577}{2}

Separate the equation into 2 possible cases

x = \frac{17 + 577}{2} x = \frac{17 - 577}{2}

Solution

x_{1} = \frac{17 - 577}{2}, x_{2} = \frac{17 + 577}{2}

Alternative Form

x_{1} \approx - 3.510412, x_{2} \approx 20.510412

Find the roots