What are the solutions to the equation x^2+7x-9=0 ?

The solutions to the equation x^2+7x-9=0 are x=(-7+sqrt(85))/2 ,x=(-7-sqrt(85))/2

Find the zeros of x^2+7x-9=0

The zeros of x^2+7x-9=0 are x=(-7+sqrt(85))/2 ,x=(-7-sqrt(85))/2

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x^{2} + 7 x - 9 = 0

x = \frac{- 7 + 85}{2}, x = \frac{- 7 - 85}{2}

Solution steps

x^{2} + 7 x - 9 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 7 \pm 7 ^{2} - 4 \cdot 1 \cdot ( - 9 )}{2 \cdot 1}

7^{2} - 4 \cdot 1 \cdot (- 9) = 85

x_{1, 2} = \frac{- 7 \pm 85}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 7 + 85}{2 \cdot 1}, x_{2} = \frac{- 7 - 85}{2 \cdot 1}

x = \frac{- 7 + 85}{2 \cdot 1} : \frac{- 7 + 85}{2}

x = \frac{- 7 - 85}{2 \cdot 1} : \frac{- 7 - 85}{2}

The solutions to the quadratic equation are:

x = \frac{- 7 + 85}{2}, x = \frac{- 7 - 85}{2}

(x + 5) (2 x - 1) = 0

- t^{2} + 2 t + 3 = 0

2 x^{2} - 6 x = - 1

k^{2} + 1 = 0

m^{2} + 45 m + 600 = 0

What are the solutions to the equation x^2+7x-9=0 ?
The solutions to the equation x^2+7x-9=0 are x=(-7+sqrt(85))/2 ,x=(-7-sqrt(85))/2
Find the zeros of x^2+7x-9=0
The zeros of x^2+7x-9=0 are x=(-7+sqrt(85))/2 ,x=(-7-sqrt(85))/2