What are the solutions to the equation x^2-8x-56=0 ?

The solutions to the equation x^2-8x-56=0 are x=2(2+3sqrt(2)),x=2(2-3sqrt(2))

Find the zeros of x^2-8x-56=0

The zeros of x^2-8x-56=0 are x=2(2+3sqrt(2)),x=2(2-3sqrt(2))

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x^{2} - 8 x - 56 = 0

x = 2 (2 + 32), x = 2 (2 - 32)

Decimal Notation

x = 12.48528 \dots, x = - 4.48528 \dots

Solution steps

x^{2} - 8 x - 56 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 \cdot 1 \cdot ( - 56 )}{2 \cdot 1}

(- 8)^{2} - 4 \cdot 1 \cdot (- 56) = 122

x_{1, 2} = \frac{- ( - 8 ) \pm 12 2}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 8 ) + 12 2}{2 \cdot 1}, x_{2} = \frac{- ( - 8 ) - 12 2}{2 \cdot 1}

x = \frac{- ( - 8 ) + 12 2}{2 \cdot 1} : 2 (2 + 32)

x = \frac{- ( - 8 ) - 12 2}{2 \cdot 1} : 2 (2 - 32)

The solutions to the quadratic equation are:

x = 2 (2 + 32), x = 2 (2 - 32)

x^{2} - 0.5 x - 3 = 0

4 x^{2} - 5 x = 21

24 x^{2} + 5 x - 1 = 0

4 x^{2} - 8 = 4

a (x) = x^{2} + 7 x + 12

What are the solutions to the equation x^2-8x-56=0 ?
The solutions to the equation x^2-8x-56=0 are x=2(2+3sqrt(2)),x=2(2-3sqrt(2))
Find the zeros of x^2-8x-56=0
The zeros of x^2-8x-56=0 are x=2(2+3sqrt(2)),x=2(2-3sqrt(2))