What are the solutions to the equation x^2-5x-84=0 ?

The solutions to the equation x^2-5x-84=0 are x=12,x=-7

Find the zeros of x^2-5x-84=0

The zeros of x^2-5x-84=0 are x=12,x=-7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} - 5 x - 84 = 0

x = 12, x = - 7

Solution steps

x^{2} - 5 x - 84 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 5 ) \pm ( - 5 ) ^{2} - 4 \cdot 1 \cdot ( - 84 )}{2 \cdot 1}

(- 5)^{2} - 4 \cdot 1 \cdot (- 84) = 19

x_{1, 2} = \frac{- ( - 5 ) \pm 19}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 5 ) + 19}{2 \cdot 1}, x_{2} = \frac{- ( - 5 ) - 19}{2 \cdot 1}

x = \frac{- ( - 5 ) + 19}{2 \cdot 1} : 12

x = \frac{- ( - 5 ) - 19}{2 \cdot 1} : - 7

The solutions to the quadratic equation are:

x = 12, x = - 7

\frac{1}{3 - 2 x} > \frac{1}{4 - 5 x}

\frac{7 m ^{5} n ^{- 7}}{a ^{2} m ^{3} n ^{- 4}}

\frac{4 ( x ^{2} - 1 )}{x - 3} \leq x + 1

\frac{3 20}{2 4}

\frac{- 4}{5}

What are the solutions to the equation x^2-5x-84=0 ?
The solutions to the equation x^2-5x-84=0 are x=12,x=-7
Find the zeros of x^2-5x-84=0
The zeros of x^2-5x-84=0 are x=12,x=-7