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Popular >

3x^2-6x-72=0

Solution

3 x^{2} - 6 x - 72 = 0

Solution

x = 6, x = - 4

Solution steps

3 x^{2} - 6 x - 72 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 6 ) \pm ( - 6 ) ^{2} - 4 \cdot 3 ( - 72 )}{2 \cdot 3}

(- 6)^{2} - 4 \cdot 3 (- 72) = 30

x_{1, 2} = \frac{- ( - 6 ) \pm 30}{2 \cdot 3}

Separate the solutions

x_{1} = \frac{- ( - 6 ) + 30}{2 \cdot 3}, x_{2} = \frac{- ( - 6 ) - 30}{2 \cdot 3}

x = \frac{- ( - 6 ) + 30}{2 \cdot 3} : 6

x = \frac{- ( - 6 ) - 30}{2 \cdot 3} : - 4

The solutions to the quadratic equation are:

x = 6, x = - 4

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Frequently Asked Questions (FAQ)

What are the solutions to the equation 3x^2-6x-72=0 ?
The solutions to the equation 3x^2-6x-72=0 are x=6,x=-4
Find the zeros of 3x^2-6x-72=0
The zeros of 3x^2-6x-72=0 are x=6,x=-4