Solve t^2-t-4=0 - ScanMath

Evaluate

t^{2} - t - 4 = 0

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

t = \frac{1 \pm ( - 1 ) ^{2} - 4 ( - 4 )}{2}

Simplify the expression

More Steps

t = \frac{1 \pm 17}{2}

Separate the equation into 2 possible cases

t = \frac{1 + 17}{2} t = \frac{1 - 17}{2}

Solution

t_{1} = \frac{1 - 17}{2}, t_{2} = \frac{1 + 17}{2}

Alternative Form

t_{1} \approx - 1.561553, t_{2} \approx 2.561553

Solve the quadratic equation