What are the solutions to the equation 10k^2+21k+9=0 ?

The solutions to the equation 10k^2+21k+9=0 are k=-3/5 ,k=-3/2

Find the zeros of 10k^2+21k+9=0

The zeros of 10k^2+21k+9=0 are k=-3/5 ,k=-3/2

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10 k^{2} + 21 k + 9 = 0

k = - \frac{3}{5}, k = - \frac{3}{2}

Decimal Notation

k = - 0.6, k = - 1.5

Solution steps

10 k^{2} + 21 k + 9 = 0

Solve with the quadratic formula

k_{1, 2} = \frac{- 21 \pm 2 1 ^{2} - 4 \cdot 10 \cdot 9}{2 \cdot 10}

2 1^{2} - 4 \cdot 10 \cdot 9 = 9

k_{1, 2} = \frac{- 21 \pm 9}{2 \cdot 10}

Separate the solutions

k_{1} = \frac{- 21 + 9}{2 \cdot 10}, k_{2} = \frac{- 21 - 9}{2 \cdot 10}

k = \frac{- 21 + 9}{2 \cdot 10} : - \frac{3}{5}

k = \frac{- 21 - 9}{2 \cdot 10} : - \frac{3}{2}

The solutions to the quadratic equation are:

k = - \frac{3}{5}, k = - \frac{3}{2}

x, b^{2} x^{2} + a^{2} y^{2} = a^{2} b^{2}

- x^{2} + 6 x = 9

75 x^{2} - 750 x + 1700 = 0

(m - 2) (m + 2) = 0

25 = (x - 3)^{2}

What are the solutions to the equation 10k^2+21k+9=0 ?
The solutions to the equation 10k^2+21k+9=0 are k=-3/5 ,k=-3/2
Find the zeros of 10k^2+21k+9=0
The zeros of 10k^2+21k+9=0 are k=-3/5 ,k=-3/2