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

The solutions to the equation x^2-9x-2=0 are x=(9+sqrt(89))/2 ,x=(9-sqrt(89))/2

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

The zeros of x^2-9x-2=0 are x=(9+sqrt(89))/2 ,x=(9-sqrt(89))/2

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

x = \frac{9 + 89}{2}, x = \frac{9 - 89}{2}

Decimal Notation

x = 9.21699 \dots, x = - 0.21699 \dots

Solution steps

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

Solve with the quadratic formula

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

(- 9)^{2} - 4 \cdot 1 \cdot (- 2) = 89

x_{1, 2} = \frac{- ( - 9 ) \pm 89}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 9 ) + 89}{2 \cdot 1}, x_{2} = \frac{- ( - 9 ) - 89}{2 \cdot 1}

x = \frac{- ( - 9 ) + 89}{2 \cdot 1} : \frac{9 + 89}{2}

x = \frac{- ( - 9 ) - 89}{2 \cdot 1} : \frac{9 - 89}{2}

The solutions to the quadratic equation are:

x = \frac{9 + 89}{2}, x = \frac{9 - 89}{2}

(7 - 2 i)^{2}

x^{3} - 5 x^{2} - 25 x + 125

(2 n + 1)^{2} + 3 (2 n + 1) - 4 = 0

8 x^{2} + 20 x + 8

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What are the solutions to the equation x^2-9x-2=0 ?
The solutions to the equation x^2-9x-2=0 are x=(9+sqrt(89))/2 ,x=(9-sqrt(89))/2
Find the zeros of x^2-9x-2=0
The zeros of x^2-9x-2=0 are x=(9+sqrt(89))/2 ,x=(9-sqrt(89))/2