What are the solutions to the equation roots x^2-2x-15 ?

The solutions to the equation roots x^2-2x-15 are x=5,x=-3

Find the zeros of roots x^2-2x-15

The zeros of roots x^2-2x-15 are x=5,x=-3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

roots

x^{2} - 2 x - 15

x = 5, x = - 3

Solution steps

x^{2} - 2 x - 15

The roots are the intercepts with the x-axis

(y = 0)

x^{2} - 2 x - 15 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 2 ) \pm ( - 2 ) ^{2} - 4 \cdot 1 \cdot ( - 15 )}{2 \cdot 1}

(- 2)^{2} - 4 \cdot 1 \cdot (- 15) = 8

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

Separate the solutions

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

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

x = \frac{- ( - 2 ) - 8}{2 \cdot 1} : - 3

The solutions to the quadratic equation are:

x = 5, x = - 3

x^{2} - 3 x + 1

13 - x^{2} = - 10

x^{2} + 12 x + 27 = 0

23 p = 5 p^{2} + 24

y, x^{3} - x y + y^{2} = 4

What are the solutions to the equation roots x^2-2x-15 ?
The solutions to the equation roots x^2-2x-15 are x=5,x=-3
Find the zeros of roots x^2-2x-15
The zeros of roots x^2-2x-15 are x=5,x=-3