What are the solutions to the equation x(x-2)=63 ?

The solutions to the equation x(x-2)=63 are x=9,x=-7

Find the zeros of x(x-2)=63

The zeros of x(x-2)=63 are x=9,x=-7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x (x - 2) = 63

x = 9, x = - 7

Solution steps

x (x - 2) = 63

Expand

x (x - 2) : x^{2} - 2 x

x^{2} - 2 x = 63

Move

63

to the left side

x^{2} - 2 x - 63 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 2 ) \pm ( - 2 ) ^{2} - 4 \cdot 1 \cdot ( - 63 )}{2 \cdot 1}

(- 2)^{2} - 4 \cdot 1 \cdot (- 63) = 16

x_{1, 2} = \frac{- ( - 2 ) \pm 16}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 2 ) + 16}{2 \cdot 1}, x_{2} = \frac{- ( - 2 ) - 16}{2 \cdot 1}

x = \frac{- ( - 2 ) + 16}{2 \cdot 1} : 9

x = \frac{- ( - 2 ) - 16}{2 \cdot 1} : - 7

The solutions to the quadratic equation are:

x = 9, x = - 7

2 x^{2} - 9 x - 11 = 0

3 x + 25 = 67

\frac{5}{7} 63 n^{3} - 2 112 n^{3}

\frac{x ^{5} y ^{4}}{x y ^{6}}

X (2 X) + 50 = 850

What are the solutions to the equation x(x-2)=63 ?
The solutions to the equation x(x-2)=63 are x=9,x=-7
Find the zeros of x(x-2)=63
The zeros of x(x-2)=63 are x=9,x=-7