What are the solutions to the equation 3n^2-5n-15=0 ?

The solutions to the equation 3n^2-5n-15=0 are n=(5+sqrt(205))/6 ,n=(5-sqrt(205))/6

Find the zeros of 3n^2-5n-15=0

The zeros of 3n^2-5n-15=0 are n=(5+sqrt(205))/6 ,n=(5-sqrt(205))/6

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3 n^{2} - 5 n - 15 = 0

n = \frac{5 + 205}{6}, n = \frac{5 - 205}{6}

Decimal Notation

n = 3.21963 \dots, n = - 1.55297 \dots

Solution steps

3 n^{2} - 5 n - 15 = 0

Solve with the quadratic formula

n_{1, 2} = \frac{- ( - 5 ) \pm ( - 5 ) ^{2} - 4 \cdot 3 ( - 15 )}{2 \cdot 3}

(- 5)^{2} - 4 \cdot 3 (- 15) = 205

n_{1, 2} = \frac{- ( - 5 ) \pm 205}{2 \cdot 3}

Separate the solutions

n_{1} = \frac{- ( - 5 ) + 205}{2 \cdot 3}, n_{2} = \frac{- ( - 5 ) - 205}{2 \cdot 3}

n = \frac{- ( - 5 ) + 205}{2 \cdot 3} : \frac{5 + 205}{6}

n = \frac{- ( - 5 ) - 205}{2 \cdot 3} : \frac{5 - 205}{6}

The solutions to the quadratic equation are:

n = \frac{5 + 205}{6}, n = \frac{5 - 205}{6}

\frac{9}{12}

a + 5 < - 7

- 10 y < 60

2 x^{2} - 13 x - 1 = 0

- 14 > - 3

What are the solutions to the equation 3n^2-5n-15=0 ?
The solutions to the equation 3n^2-5n-15=0 are n=(5+sqrt(205))/6 ,n=(5-sqrt(205))/6
Find the zeros of 3n^2-5n-15=0
The zeros of 3n^2-5n-15=0 are n=(5+sqrt(205))/6 ,n=(5-sqrt(205))/6