What are the solutions to the equation x^2-8x=65 ?

The solutions to the equation x^2-8x=65 are x=13,x=-5

Find the zeros of x^2-8x=65

The zeros of x^2-8x=65 are x=13,x=-5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} - 8 x = 65

x = 13, x = - 5

Solution steps

x^{2} - 8 x = 65

Move

65

to the left side

x^{2} - 8 x - 65 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 8 ) \pm ( - 8 ) ^{2} - 4 \cdot 1 \cdot ( - 65 )}{2 \cdot 1}

(- 8)^{2} - 4 \cdot 1 \cdot (- 65) = 18

x_{1, 2} = \frac{- ( - 8 ) \pm 18}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 8 ) + 18}{2 \cdot 1}, x_{2} = \frac{- ( - 8 ) - 18}{2 \cdot 1}

x = \frac{- ( - 8 ) + 18}{2 \cdot 1} : 13

x = \frac{- ( - 8 ) - 18}{2 \cdot 1} : - 5

The solutions to the quadratic equation are:

x = 13, x = - 5

x, x^{2} + 6 x - 4 y^{2} + 8 y + 5 = 0

3 x^{2} - 6 x + 13 = 0

2 x^{2} = 144

3 x^{2} - 24 x + 2 = 5 x^{2} + 1

2 x^{2} - 8 x + 3

What are the solutions to the equation x^2-8x=65 ?
The solutions to the equation x^2-8x=65 are x=13,x=-5
Find the zeros of x^2-8x=65
The zeros of x^2-8x=65 are x=13,x=-5