What are the solutions to the equation 0=3x^2-6x-9 ?

The solutions to the equation 0=3x^2-6x-9 are x=3,x=-1

Find the zeros of 0=3x^2-6x-9

The zeros of 0=3x^2-6x-9 are x=3,x=-1

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0 = 3 x^{2} - 6 x - 9

x = 3, x = - 1

Solution steps

0 = 3 x^{2} - 6 x - 9

Switch sides

3 x^{2} - 6 x - 9 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 6 ) \pm ( - 6 ) ^{2} - 4 \cdot 3 ( - 9 )}{2 \cdot 3}

(- 6)^{2} - 4 \cdot 3 (- 9) = 12

x_{1, 2} = \frac{- ( - 6 ) \pm 12}{2 \cdot 3}

Separate the solutions

x_{1} = \frac{- ( - 6 ) + 12}{2 \cdot 3}, x_{2} = \frac{- ( - 6 ) - 12}{2 \cdot 3}

x = \frac{- ( - 6 ) + 12}{2 \cdot 3} : 3

x = \frac{- ( - 6 ) - 12}{2 \cdot 3} : - 1

The solutions to the quadratic equation are:

x = 3, x = - 1

(x + 3)^{2} = - 54

3 x^{2} + 18 x + 8

x, x^{2} + y^{2} = y^{3} + 2 x - y

4 x^{2} - 3 = 12 x

- 2 x^{2} + x - 4 = 0

What are the solutions to the equation 0=3x^2-6x-9 ?
The solutions to the equation 0=3x^2-6x-9 are x=3,x=-1
Find the zeros of 0=3x^2-6x-9
The zeros of 0=3x^2-6x-9 are x=3,x=-1