What are the solutions to the equation 5x^2+20x+8=0 ?

The solutions to the equation 5x^2+20x+8=0 are x=(2(sqrt(15)-5))/5 ,x=-(2(5+sqrt(15)))/5

Find the zeros of 5x^2+20x+8=0

The zeros of 5x^2+20x+8=0 are x=(2(sqrt(15)-5))/5 ,x=-(2(5+sqrt(15)))/5

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5 x^{2} + 20 x + 8 = 0

x = \frac{2 ( 15 - 5 )}{5}, x = - \frac{2 ( 5 + 15 )}{5}

Decimal Notation

x = - 0.45080 \dots, x = - 3.54919 \dots

Solution steps

5 x^{2} + 20 x + 8 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 20 \pm 2 0 ^{2} - 4 \cdot 5 \cdot 8}{2 \cdot 5}

2 0^{2} - 4 \cdot 5 \cdot 8 = 415

x_{1, 2} = \frac{- 20 \pm 4 15}{2 \cdot 5}

Separate the solutions

x_{1} = \frac{- 20 + 4 15}{2 \cdot 5}, x_{2} = \frac{- 20 - 4 15}{2 \cdot 5}

x = \frac{- 20 + 4 15}{2 \cdot 5} : \frac{2 ( 15 - 5 )}{5}

x = \frac{- 20 - 4 15}{2 \cdot 5} : - \frac{2 ( 5 + 15 )}{5}

The solutions to the quadratic equation are:

x = \frac{2 ( 15 - 5 )}{5}, x = - \frac{2 ( 5 + 15 )}{5}

m^{2} + 8 m + 6 = 0

8 x^{2} - 18 x + 7 = 0

5 x (x - 6) + 4 (x - 4) = - 7 x^{2} - 30

2 x^{2} - 28 x = - 98

5 x^{2} - 12 = 3 x^{2} + 20

What are the solutions to the equation 5x^2+20x+8=0 ?
The solutions to the equation 5x^2+20x+8=0 are x=(2(sqrt(15)-5))/5 ,x=-(2(5+sqrt(15)))/5
Find the zeros of 5x^2+20x+8=0
The zeros of 5x^2+20x+8=0 are x=(2(sqrt(15)-5))/5 ,x=-(2(5+sqrt(15)))/5