What are the solutions to the equation 30x^2-9x-12=0 ?

The solutions to the equation 30x^2-9x-12=0 are x= 4/5 ,x=-1/2

Find the zeros of 30x^2-9x-12=0

The zeros of 30x^2-9x-12=0 are x= 4/5 ,x=-1/2

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30 x^{2} - 9 x - 12 = 0

x = \frac{4}{5}, x = - \frac{1}{2}

Decimal Notation

x = 0.8, x = - 0.5

Solution steps

30 x^{2} - 9 x - 12 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 9 ) \pm ( - 9 ) ^{2} - 4 \cdot 30 ( - 12 )}{2 \cdot 30}

(- 9)^{2} - 4 \cdot 30 (- 12) = 39

x_{1, 2} = \frac{- ( - 9 ) \pm 39}{2 \cdot 30}

Separate the solutions

x_{1} = \frac{- ( - 9 ) + 39}{2 \cdot 30}, x_{2} = \frac{- ( - 9 ) - 39}{2 \cdot 30}

x = \frac{- ( - 9 ) + 39}{2 \cdot 30} : \frac{4}{5}

x = \frac{- ( - 9 ) - 39}{2 \cdot 30} : - \frac{1}{2}

The solutions to the quadratic equation are:

x = \frac{4}{5}, x = - \frac{1}{2}

x, x^{2} + p x + q = 0

x^{2} - x - 72 = 0

0 = - 0.125 x^{2} + 3 x - 10

2 x + 4 + 6 x^{2} = 5 x^{2} + 6 x

x^{2} + 23 x - 78 = 0

What are the solutions to the equation 30x^2-9x-12=0 ?
The solutions to the equation 30x^2-9x-12=0 are x= 4/5 ,x=-1/2
Find the zeros of 30x^2-9x-12=0
The zeros of 30x^2-9x-12=0 are x= 4/5 ,x=-1/2