What are the solutions to the equation 8r^2+3r+2=7r^2 ?

The solutions to the equation 8r^2+3r+2=7r^2 are r=-1,r=-2

Find the zeros of 8r^2+3r+2=7r^2

The zeros of 8r^2+3r+2=7r^2 are r=-1,r=-2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

8 r^{2} + 3 r + 2 = 7 r^{2}

r = - 1, r = - 2

Solution steps

8 r^{2} + 3 r + 2 = 7 r^{2}

Move

7 r^{2}

to the left side

r^{2} + 3 r + 2 = 0

Solve with the quadratic formula

r_{1, 2} = \frac{- 3 \pm 3 ^{2} - 4 \cdot 1 \cdot 2}{2 \cdot 1}

3^{2} - 4 \cdot 1 \cdot 2 = 1

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

Separate the solutions

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

r = \frac{- 3 + 1}{2 \cdot 1} : - 1

r = \frac{- 3 - 1}{2 \cdot 1} : - 2

The solutions to the quadratic equation are:

r = - 1, r = - 2

2 (x - 5) + 7 = x + 8

9 x^{2} - 48 x + 64

\frac{a}{- 3} - 6 = - 1

(- 8)^{\frac{4}{3}}

a^{2} - 49

What are the solutions to the equation 8r^2+3r+2=7r^2 ?
The solutions to the equation 8r^2+3r+2=7r^2 are r=-1,r=-2
Find the zeros of 8r^2+3r+2=7r^2
The zeros of 8r^2+3r+2=7r^2 are r=-1,r=-2