What are the solutions to the equation 0=2.5x^2+x-1.5 ?

The solutions to the equation 0=2.5x^2+x-1.5 are x= 3/5 ,x=-1

Find the zeros of 0=2.5x^2+x-1.5

The zeros of 0=2.5x^2+x-1.5 are x= 3/5 ,x=-1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

0 = 2.5 x^{2} + x - 1.5

x = \frac{3}{5}, x = - 1

Decimal Notation

x = 0.6, x = - 1

Solution steps

0 = 2.5 x^{2} + x - 1.5

Multiply both sides by

10

0 = 25 x^{2} + 10 x - 15

Switch sides

25 x^{2} + 10 x - 15 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 10 \pm 1 0 ^{2} - 4 \cdot 25 ( - 15 )}{2 \cdot 25}

1 0^{2} - 4 \cdot 25 (- 15) = 40

x_{1, 2} = \frac{- 10 \pm 40}{2 \cdot 25}

Separate the solutions

x_{1} = \frac{- 10 + 40}{2 \cdot 25}, x_{2} = \frac{- 10 - 40}{2 \cdot 25}

x = \frac{- 10 + 40}{2 \cdot 25} : \frac{3}{5}

x = \frac{- 10 - 40}{2 \cdot 25} : - 1

The solutions to the quadratic equation are:

x = \frac{3}{5}, x = - 1

2 z^{2} - 5 z + 2 = 0

29 x^{2} - 3 = 8 - 20 x^{2}

y, x^{2} - y^{2} = x

4 x^{2} + 2 x - 9 = (x - 2) (x - 9)

32 x^{2} + 32 = 0

What are the solutions to the equation 0=2.5x^2+x-1.5 ?
The solutions to the equation 0=2.5x^2+x-1.5 are x= 3/5 ,x=-1
Find the zeros of 0=2.5x^2+x-1.5
The zeros of 0=2.5x^2+x-1.5 are x= 3/5 ,x=-1