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

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

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

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

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

x = 3, x = - 1

Solution steps

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

Solve with the quadratic formula

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

(- 10)^{2} - 4 \cdot 5 (- 15) = 20

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

Separate the solutions

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

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

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

The solutions to the quadratic equation are:

x = 3, x = - 1

\frac{k}{2} - 1 \leq 1

(x + 8)^{2} (x + 5) > 0

\frac{3}{5 ^{3}}

(47 t - 16 t^{2}) - 30

(x - 4) (x - 1) \leq 28

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