What are the solutions to the equation 9x^2+8x-13=0 ?

The solutions to the equation 9x^2+8x-13=0 are x=(-4+sqrt(133))/9 ,x=-(4+sqrt(133))/9

Find the zeros of 9x^2+8x-13=0

The zeros of 9x^2+8x-13=0 are x=(-4+sqrt(133))/9 ,x=-(4+sqrt(133))/9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

9 x^{2} + 8 x - 13 = 0

x = \frac{- 4 + 133}{9}, x = - \frac{4 + 133}{9}

Decimal Notation

x = 0.83695 \dots, x = - 1.72584 \dots

Solution steps

9 x^{2} + 8 x - 13 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 8 \pm 8 ^{2} - 4 \cdot 9 ( - 13 )}{2 \cdot 9}

8^{2} - 4 \cdot 9 (- 13) = 2133

x_{1, 2} = \frac{- 8 \pm 2 133}{2 \cdot 9}

Separate the solutions

x_{1} = \frac{- 8 + 2 133}{2 \cdot 9}, x_{2} = \frac{- 8 - 2 133}{2 \cdot 9}

x = \frac{- 8 + 2 133}{2 \cdot 9} : \frac{- 4 + 133}{9}

x = \frac{- 8 - 2 133}{2 \cdot 9} : - \frac{4 + 133}{9}

The solutions to the quadratic equation are:

x = \frac{- 4 + 133}{9}, x = - \frac{4 + 133}{9}

- 4 x^{2} - 72 x - 68 = 0

x^{2} - 7 x + 12 = 0

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

290 = \frac{9.81 \cdot t ^{2}}{2}

m x^{2} + (m - 2) x - (3 m - 1) = 0

What are the solutions to the equation 9x^2+8x-13=0 ?
The solutions to the equation 9x^2+8x-13=0 are x=(-4+sqrt(133))/9 ,x=-(4+sqrt(133))/9
Find the zeros of 9x^2+8x-13=0
The zeros of 9x^2+8x-13=0 are x=(-4+sqrt(133))/9 ,x=-(4+sqrt(133))/9