What are the solutions to the equation -7x^2+8x+2=0 ?

The solutions to the equation -7x^2+8x+2=0 are x=-(-4+sqrt(30))/7 ,x=(4+sqrt(30))/7

Find the zeros of -7x^2+8x+2=0

The zeros of -7x^2+8x+2=0 are x=-(-4+sqrt(30))/7 ,x=(4+sqrt(30))/7

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

x = - \frac{- 4 + 30}{7}, x = \frac{4 + 30}{7}

Decimal Notation

x = - 0.21103 \dots, x = 1.35388 \dots

Solution steps

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

Solve with the quadratic formula

x_{1, 2} = \frac{- 8 \pm 8 ^{2} - 4 ( - 7 ) \cdot 2}{2 ( - 7 )}

8^{2} - 4 (- 7) \cdot 2 = 230

x_{1, 2} = \frac{- 8 \pm 2 30}{2 ( - 7 )}

Separate the solutions

x_{1} = \frac{- 8 + 2 30}{2 ( - 7 )}, x_{2} = \frac{- 8 - 2 30}{2 ( - 7 )}

x = \frac{- 8 + 2 30}{2 ( - 7 )} : - \frac{- 4 + 30}{7}

x = \frac{- 8 - 2 30}{2 ( - 7 )} : \frac{4 + 30}{7}

The solutions to the quadratic equation are:

x = - \frac{- 4 + 30}{7}, x = \frac{4 + 30}{7}

X^{2} - 4 X - 1 = 0

x^{2} + 16 x + 64 = 0

5 x^{2} + 31.623 x + 50 = 0

m (m - 5) = - 24

X^{2} = (X - 9)^{2} + (X - 8)^{2}

What are the solutions to the equation -7x^2+8x+2=0 ?
The solutions to the equation -7x^2+8x+2=0 are x=-(-4+sqrt(30))/7 ,x=(4+sqrt(30))/7
Find the zeros of -7x^2+8x+2=0
The zeros of -7x^2+8x+2=0 are x=-(-4+sqrt(30))/7 ,x=(4+sqrt(30))/7