What are the solutions to the equation 3a^2+9a-30=0 ?

The solutions to the equation 3a^2+9a-30=0 are a=2,a=-5

Find the zeros of 3a^2+9a-30=0

The zeros of 3a^2+9a-30=0 are a=2,a=-5

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3 a^{2} + 9 a - 30 = 0

a = 2, a = - 5

Solution steps

3 a^{2} + 9 a - 30 = 0

Solve with the quadratic formula

a_{1, 2} = \frac{- 9 \pm 9 ^{2} - 4 \cdot 3 ( - 30 )}{2 \cdot 3}

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

a_{1, 2} = \frac{- 9 \pm 21}{2 \cdot 3}

Separate the solutions

a_{1} = \frac{- 9 + 21}{2 \cdot 3}, a_{2} = \frac{- 9 - 21}{2 \cdot 3}

a = \frac{- 9 + 21}{2 \cdot 3} : 2

a = \frac{- 9 - 21}{2 \cdot 3} : - 5

The solutions to the quadratic equation are:

a = 2, a = - 5

x, 5 x^{2} + 3 = 2 y^{3} + 5

x^{2} + 5 x - 22 = 8 x + 32

16 x^{2} - 225 = 0

a, a^{2} + ab - b^{2} = 0

2 x^{2} - 15 x + 5 = 0

What are the solutions to the equation 3a^2+9a-30=0 ?
The solutions to the equation 3a^2+9a-30=0 are a=2,a=-5
Find the zeros of 3a^2+9a-30=0
The zeros of 3a^2+9a-30=0 are a=2,a=-5