What are the solutions to the equation x^2+3x=40 ?

The solutions to the equation x^2+3x=40 are x=5,x=-8

Find the zeros of x^2+3x=40

The zeros of x^2+3x=40 are x=5,x=-8

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} + 3 x = 40

x = 5, x = - 8

Solution steps

x^{2} + 3 x = 40

Move

40

to the left side

x^{2} + 3 x - 40 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 1 \cdot ( - 40 )}{2 \cdot 1}

3^{2} - 4 \cdot 1 \cdot (- 40) = 13

x_{1, 2} = \frac{- 3 \pm 13}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 3 + 13}{2 \cdot 1}, x_{2} = \frac{- 3 - 13}{2 \cdot 1}

x = \frac{- 3 + 13}{2 \cdot 1} : 5

x = \frac{- 3 - 13}{2 \cdot 1} : - 8

The solutions to the quadratic equation are:

x = 5, x = - 8

x^{3} - 8 x^{2} - 4 x + 32

3 + 4 x = 23

6 = ∣ 2 y - 11 ∣

x - 5 = - 1

3 x^{- 1}

What are the solutions to the equation x^2+3x=40 ?
The solutions to the equation x^2+3x=40 are x=5,x=-8
Find the zeros of x^2+3x=40
The zeros of x^2+3x=40 are x=5,x=-8