What are the solutions to the equation 3=2x^2+5x ?

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

Find the zeros of 3=2x^2+5x

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

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

3 = 2 x^{2} + 5 x

x = \frac{1}{2}, x = - 3

Decimal Notation

x = 0.5, x = - 3

Solution steps

3 = 2 x^{2} + 5 x

Switch sides

2 x^{2} + 5 x = 3

Move

3

to the left side

2 x^{2} + 5 x - 3 = 0

Solve with the quadratic formula

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

5^{2} - 4 \cdot 2 (- 3) = 7

x_{1, 2} = \frac{- 5 \pm 7}{2 \cdot 2}

Separate the solutions

x_{1} = \frac{- 5 + 7}{2 \cdot 2}, x_{2} = \frac{- 5 - 7}{2 \cdot 2}

x = \frac{- 5 + 7}{2 \cdot 2} : \frac{1}{2}

x = \frac{- 5 - 7}{2 \cdot 2} : - 3

The solutions to the quadratic equation are:

x = \frac{1}{2}, x = - 3

(x + 9) (4 x - 1) = 0

8 n^{2} - 4 = 532

4 x^{2} - x - 7 = 0

x^{2} - 6 x + 8.5 = 0

w^{2} - 18 w

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