What are the solutions to the equation -5x^2+3x+8=0 ?

The solutions to the equation -5x^2+3x+8=0 are x=-1,x= 8/5

Find the zeros of -5x^2+3x+8=0

The zeros of -5x^2+3x+8=0 are x=-1,x= 8/5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

- 5 x^{2} + 3 x + 8 = 0

x = - 1, x = \frac{8}{5}

Decimal Notation

x = - 1, x = 1.6

Solution steps

- 5 x^{2} + 3 x + 8 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 ( - 5 ) \cdot 8}{2 ( - 5 )}

3^{2} - 4 (- 5) \cdot 8 = 13

x_{1, 2} = \frac{- 3 \pm 13}{2 ( - 5 )}

Separate the solutions

x_{1} = \frac{- 3 + 13}{2 ( - 5 )}, x_{2} = \frac{- 3 - 13}{2 ( - 5 )}

x = \frac{- 3 + 13}{2 ( - 5 )} : - 1

x = \frac{- 3 - 13}{2 ( - 5 )} : \frac{8}{5}

The solutions to the quadratic equation are:

x = - 1, x = \frac{8}{5}

3 x^{2} - 2 x - 1 = 3 x + 1

- 5 x^{2} + 6 = x

6 x^{2} - 18 x - 5 = 0

2 x^{2} - 1 x = 3

\frac{1}{8} x^{2} + x + \frac{3}{4} = 0

What are the solutions to the equation -5x^2+3x+8=0 ?
The solutions to the equation -5x^2+3x+8=0 are x=-1,x= 8/5
Find the zeros of -5x^2+3x+8=0
The zeros of -5x^2+3x+8=0 are x=-1,x= 8/5