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Popular >

3x^2-21x+30=0

Solution

3 x^{2} - 21 x + 30 = 0

Solution

x = 5, x = 2

Solution steps

3 x^{2} - 21 x + 30 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 21 ) \pm ( - 21 ) ^{2} - 4 \cdot 3 \cdot 30}{2 \cdot 3}

(- 21)^{2} - 4 \cdot 3 \cdot 30 = 9

x_{1, 2} = \frac{- ( - 21 ) \pm 9}{2 \cdot 3}

Separate the solutions

x_{1} = \frac{- ( - 21 ) + 9}{2 \cdot 3}, x_{2} = \frac{- ( - 21 ) - 9}{2 \cdot 3}

x = \frac{- ( - 21 ) + 9}{2 \cdot 3} : 5

x = \frac{- ( - 21 ) - 9}{2 \cdot 3} : 2

The solutions to the quadratic equation are:

x = 5, x = 2

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Frequently Asked Questions (FAQ)

What are the solutions to the equation 3x^2-21x+30=0 ?
The solutions to the equation 3x^2-21x+30=0 are x=5,x=2
Find the zeros of 3x^2-21x+30=0
The zeros of 3x^2-21x+30=0 are x=5,x=2