What are the solutions to the equation -5x^2+10x+15=0 ?

The solutions to the equation -5x^2+10x+15=0 are x=-1,x=3

Find the zeros of -5x^2+10x+15=0

The zeros of -5x^2+10x+15=0 are x=-1,x=3

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- 5 x^{2} + 10 x + 15 = 0

x = - 1, x = 3

Solution steps

- 5 x^{2} + 10 x + 15 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 10 \pm 1 0 ^{2} - 4 ( - 5 ) \cdot 15}{2 ( - 5 )}

1 0^{2} - 4 (- 5) \cdot 15 = 20

x_{1, 2} = \frac{- 10 \pm 20}{2 ( - 5 )}

Separate the solutions

x_{1} = \frac{- 10 + 20}{2 ( - 5 )}, x_{2} = \frac{- 10 - 20}{2 ( - 5 )}

x = \frac{- 10 + 20}{2 ( - 5 )} : - 1

x = \frac{- 10 - 20}{2 ( - 5 )} : 3

The solutions to the quadratic equation are:

x = - 1, x = 3

\frac{3}{4} x - \frac{1}{2} \leq \frac{1}{8}

a^{2} + 7 ab - 18 b^{2}

(x + 4) (7 - x) (x - 5) \geq 0

n - (- 2) = - 14

64 a^{3} - 1

What are the solutions to the equation -5x^2+10x+15=0 ?
The solutions to the equation -5x^2+10x+15=0 are x=-1,x=3
Find the zeros of -5x^2+10x+15=0
The zeros of -5x^2+10x+15=0 are x=-1,x=3