What are the solutions to the equation 2x^2-15x+20=0 ?

The solutions to the equation 2x^2-15x+20=0 are x=(15+sqrt(65))/4 ,x=(15-sqrt(65))/4

Find the zeros of 2x^2-15x+20=0

The zeros of 2x^2-15x+20=0 are x=(15+sqrt(65))/4 ,x=(15-sqrt(65))/4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

2 x^{2} - 15 x + 20 = 0

x = \frac{15 + 65}{4}, x = \frac{15 - 65}{4}

Decimal Notation

x = 5.76556 \dots, x = 1.73443 \dots

Solution steps

2 x^{2} - 15 x + 20 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 15 ) \pm ( - 15 ) ^{2} - 4 \cdot 2 \cdot 20}{2 \cdot 2}

(- 15)^{2} - 4 \cdot 2 \cdot 20 = 65

x_{1, 2} = \frac{- ( - 15 ) \pm 65}{2 \cdot 2}

Separate the solutions

x_{1} = \frac{- ( - 15 ) + 65}{2 \cdot 2}, x_{2} = \frac{- ( - 15 ) - 65}{2 \cdot 2}

x = \frac{- ( - 15 ) + 65}{2 \cdot 2} : \frac{15 + 65}{4}

x = \frac{- ( - 15 ) - 65}{2 \cdot 2} : \frac{15 - 65}{4}

The solutions to the quadratic equation are:

x = \frac{15 + 65}{4}, x = \frac{15 - 65}{4}

5 x^{2} = 135

2 a^{2} + a - 3 = 0

(x + 9)^{2} + 8 (x + 9) + 12 = 0

- 3 x^{2} - 10 x + 24 = 0

3 x^{2} = 1200

What are the solutions to the equation 2x^2-15x+20=0 ?
The solutions to the equation 2x^2-15x+20=0 are x=(15+sqrt(65))/4 ,x=(15-sqrt(65))/4
Find the zeros of 2x^2-15x+20=0
The zeros of 2x^2-15x+20=0 are x=(15+sqrt(65))/4 ,x=(15-sqrt(65))/4