What are the solutions to the equation -x^2-9x-1=0 ?

The solutions to the equation -x^2-9x-1=0 are x=-(9+sqrt(77))/2 ,x=-(9-sqrt(77))/2

Find the zeros of -x^2-9x-1=0

The zeros of -x^2-9x-1=0 are x=-(9+sqrt(77))/2 ,x=-(9-sqrt(77))/2

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- x^{2} - 9 x - 1 = 0

x = - \frac{9 + 77}{2}, x = - \frac{9 - 77}{2}

Decimal Notation

x = - 8.88748 \dots, x = - 0.11251 \dots

Solution steps

- x^{2} - 9 x - 1 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 9 ) \pm ( - 9 ) ^{2} - 4 ( - 1 ) ( - 1 )}{2 ( - 1 )}

(- 9)^{2} - 4 (- 1) (- 1) = 77

x_{1, 2} = \frac{- ( - 9 ) \pm 77}{2 ( - 1 )}

Separate the solutions

x_{1} = \frac{- ( - 9 ) + 77}{2 ( - 1 )}, x_{2} = \frac{- ( - 9 ) - 77}{2 ( - 1 )}

x = \frac{- ( - 9 ) + 77}{2 ( - 1 )} : - \frac{9 + 77}{2}

x = \frac{- ( - 9 ) - 77}{2 ( - 1 )} : - \frac{9 - 77}{2}

The solutions to the quadratic equation are:

x = - \frac{9 + 77}{2}, x = - \frac{9 - 77}{2}

4 x^{2} + 11 x = 3 x - 10

x^{2} + 10 x = 16

0.169 = 1.5476 x^{2} - 2.238 x + 0.8057

0 = - 0.01 x^{2} + 0.7 x + 6.1

y \frac{y}{5} + 2 = - 8

What are the solutions to the equation -x^2-9x-1=0 ?
The solutions to the equation -x^2-9x-1=0 are x=-(9+sqrt(77))/2 ,x=-(9-sqrt(77))/2
Find the zeros of -x^2-9x-1=0
The zeros of -x^2-9x-1=0 are x=-(9+sqrt(77))/2 ,x=-(9-sqrt(77))/2