What are the solutions to the equation 5x^2-18x-8=0 ?

The solutions to the equation 5x^2-18x-8=0 are x=4,x=-2/5

Find the zeros of 5x^2-18x-8=0

The zeros of 5x^2-18x-8=0 are x=4,x=-2/5

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5 x^{2} - 18 x - 8 = 0

x = 4, x = - \frac{2}{5}

Decimal

x = 4, x = - 0.4

Solution steps

5 x^{2} - 18 x - 8 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 18 ) \pm ( - 18 ) ^{2} - 4 \cdot 5 ( - 8 )}{2 \cdot 5}

(- 18)^{2} - 4 \cdot 5 (- 8) = 22

x_{1, 2} = \frac{- ( - 18 ) \pm 22}{2 \cdot 5}

Separate the solutions

x_{1} = \frac{- ( - 18 ) + 22}{2 \cdot 5}, x_{2} = \frac{- ( - 18 ) - 22}{2 \cdot 5}

x = \frac{- ( - 18 ) + 22}{2 \cdot 5} : 4

x = \frac{- ( - 18 ) - 22}{2 \cdot 5} : - \frac{2}{5}

The solutions to the quadratic equation are:

x = 4, x = - \frac{2}{5}

5 (5 x + 9) = 13 - (x + 7)

\frac{3 x - 2}{2 x + 1} \leq 1

\frac{( 10 + 25 i )}{( - 14.5 + 250 i )}

\frac{1}{13} r = - \frac{8}{15}

(x - 7) (x - 1)^{2} (x + 4) < 0

What are the solutions to the equation 5x^2-18x-8=0 ?
The solutions to the equation 5x^2-18x-8=0 are x=4,x=-2/5
Find the zeros of 5x^2-18x-8=0
The zeros of 5x^2-18x-8=0 are x=4,x=-2/5