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

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

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

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

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

x = - 1, x = 3

Solution steps

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

Switch sides

- 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

0.1 x^{2} + 100 x + 8 = 3600000

3 (2 y + 5)^{2} = 90

9 x^{2} - 8 x + 2 = 0

3 x^{2} + 32 x - 5 = 6

x (4 x - 11) = 20

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