What are the solutions to the equation x^2+8.9x+18.7=0 ?

The solutions to the equation x^2+8.9x+18.7=0 are x=-17/5 ,x=-11/2

Find the zeros of x^2+8.9x+18.7=0

The zeros of x^2+8.9x+18.7=0 are x=-17/5 ,x=-11/2

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x^{2} + 8.9 x + 18.7 = 0

x = - \frac{17}{5}, x = - \frac{11}{2}

Solution steps

x^{2} + 8.9 x + 18.7 = 0

Multiply both sides by

10

10 x^{2} + 89 x + 187 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 89 \pm 8 9 ^{2} - 4 \cdot 10 \cdot 187}{2 \cdot 10}

8 9^{2} - 4 \cdot 10 \cdot 187 = 21

x_{1, 2} = \frac{- 89 \pm 21}{2 \cdot 10}

Separate the solutions

x_{1} = \frac{- 89 + 21}{2 \cdot 10}, x_{2} = \frac{- 89 - 21}{2 \cdot 10}

x = \frac{- 89 + 21}{2 \cdot 10} : - \frac{17}{5}

x = \frac{- 89 - 21}{2 \cdot 10} : - \frac{11}{2}

The solutions to the quadratic equation are:

x = - \frac{17}{5}, x = - \frac{11}{2}

- 14 x + 21 - 7 x^{2} = 0

x, f = x^{2} + 2 k x + k

- 3 x^{2} + 18 x = - 30

6 - x^{2} = 0

x^{2} + 8 x + 15

What are the solutions to the equation x^2+8.9x+18.7=0 ?
The solutions to the equation x^2+8.9x+18.7=0 are x=-17/5 ,x=-11/2
Find the zeros of x^2+8.9x+18.7=0
The zeros of x^2+8.9x+18.7=0 are x=-17/5 ,x=-11/2