What are the solutions to the equation x^2+5x=8 ?

The solutions to the equation x^2+5x=8 are x=(-5+sqrt(57))/2 ,x=(-5-sqrt(57))/2

Find the zeros of x^2+5x=8

The zeros of x^2+5x=8 are x=(-5+sqrt(57))/2 ,x=(-5-sqrt(57))/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} + 5 x = 8

x = \frac{- 5 + 57}{2}, x = \frac{- 5 - 57}{2}

Decimal Notation

x = 1.27491 \dots, x = - 6.27491 \dots

Solution steps

x^{2} + 5 x = 8

Move

8

to the left side

x^{2} + 5 x - 8 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 5 \pm 5 ^{2} - 4 \cdot 1 \cdot ( - 8 )}{2 \cdot 1}

5^{2} - 4 \cdot 1 \cdot (- 8) = 57

x_{1, 2} = \frac{- 5 \pm 57}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 5 + 57}{2 \cdot 1}, x_{2} = \frac{- 5 - 57}{2 \cdot 1}

x = \frac{- 5 + 57}{2 \cdot 1} : \frac{- 5 + 57}{2}

x = \frac{- 5 - 57}{2 \cdot 1} : \frac{- 5 - 57}{2}

The solutions to the quadratic equation are:

x = \frac{- 5 + 57}{2}, x = \frac{- 5 - 57}{2}

x, y = 3 x^{2}

0.0021 x^{2} - 0.42 x + 125 = 115

6 x + 8 = 9 x^{2}

x, x^{2} + x y + y^{2} = 2

X^{2} - 2 X + 5 = 0

What are the solutions to the equation x^2+5x=8 ?
The solutions to the equation x^2+5x=8 are x=(-5+sqrt(57))/2 ,x=(-5-sqrt(57))/2
Find the zeros of x^2+5x=8
The zeros of x^2+5x=8 are x=(-5+sqrt(57))/2 ,x=(-5-sqrt(57))/2