What are the solutions to the equation 5y^2-30y-18=0 ?

The solutions to the equation 5y^2-30y-18=0 are y=(3(5+sqrt(35)))/5 ,y=(3(5-sqrt(35)))/5

Find the zeros of 5y^2-30y-18=0

The zeros of 5y^2-30y-18=0 are y=(3(5+sqrt(35)))/5 ,y=(3(5-sqrt(35)))/5

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5 y^{2} - 30 y - 18 = 0

y = \frac{3 ( 5 + 35 )}{5}, y = \frac{3 ( 5 - 35 )}{5}

Decimal Notation

y = 6.54964 \dots, y = - 0.54964 \dots

Solution steps

5 y^{2} - 30 y - 18 = 0

Solve with the quadratic formula

y_{1, 2} = \frac{- ( - 30 ) \pm ( - 30 ) ^{2} - 4 \cdot 5 ( - 18 )}{2 \cdot 5}

(- 30)^{2} - 4 \cdot 5 (- 18) = 635

y_{1, 2} = \frac{- ( - 30 ) \pm 6 35}{2 \cdot 5}

Separate the solutions

y_{1} = \frac{- ( - 30 ) + 6 35}{2 \cdot 5}, y_{2} = \frac{- ( - 30 ) - 6 35}{2 \cdot 5}

y = \frac{- ( - 30 ) + 6 35}{2 \cdot 5} : \frac{3 ( 5 + 35 )}{5}

y = \frac{- ( - 30 ) - 6 35}{2 \cdot 5} : \frac{3 ( 5 - 35 )}{5}

The solutions to the quadratic equation are:

y = \frac{3 ( 5 + 35 )}{5}, y = \frac{3 ( 5 - 35 )}{5}

4 x^{2} - 8 x - 294 = - 10

0 = - 2 x^{2} - 2 x - 3

3 x^{2} + 9 x + 12 = 0

x, x^{2} - x yz = (x - yz)

5 y^{2} - 2 = - 9 y

What are the solutions to the equation 5y^2-30y-18=0 ?
The solutions to the equation 5y^2-30y-18=0 are y=(3(5+sqrt(35)))/5 ,y=(3(5-sqrt(35)))/5
Find the zeros of 5y^2-30y-18=0
The zeros of 5y^2-30y-18=0 are y=(3(5+sqrt(35)))/5 ,y=(3(5-sqrt(35)))/5