What are the solutions to the equation 7x^2-11x-12=0 ?

The solutions to the equation 7x^2-11x-12=0 are x=(11+sqrt(457))/(14),x=(11-sqrt(457))/(14)

Find the zeros of 7x^2-11x-12=0

The zeros of 7x^2-11x-12=0 are x=(11+sqrt(457))/(14),x=(11-sqrt(457))/(14)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

7 x^{2} - 11 x - 12 = 0

x = \frac{11 + 457}{14}, x = \frac{11 - 457}{14}

Decimal Notation

x = 2.31268 \dots, x = - 0.74125 \dots

Solution steps

7 x^{2} - 11 x - 12 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 11 ) \pm ( - 11 ) ^{2} - 4 \cdot 7 ( - 12 )}{2 \cdot 7}

(- 11)^{2} - 4 \cdot 7 (- 12) = 457

x_{1, 2} = \frac{- ( - 11 ) \pm 457}{2 \cdot 7}

Separate the solutions

x_{1} = \frac{- ( - 11 ) + 457}{2 \cdot 7}, x_{2} = \frac{- ( - 11 ) - 457}{2 \cdot 7}

x = \frac{- ( - 11 ) + 457}{2 \cdot 7} : \frac{11 + 457}{14}

x = \frac{- ( - 11 ) - 457}{2 \cdot 7} : \frac{11 - 457}{14}

The solutions to the quadratic equation are:

x = \frac{11 + 457}{14}, x = \frac{11 - 457}{14}

2 x^{2} - 5 x - 21 = 0

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

x^{2} + 5 x - 6.25 = 43.75

x^{2} + 83 = - 20 x

x^{2} - 0.016 x - 0.064 = 0

What are the solutions to the equation 7x^2-11x-12=0 ?
The solutions to the equation 7x^2-11x-12=0 are x=(11+sqrt(457))/(14),x=(11-sqrt(457))/(14)
Find the zeros of 7x^2-11x-12=0
The zeros of 7x^2-11x-12=0 are x=(11+sqrt(457))/(14),x=(11-sqrt(457))/(14)