What are the solutions to the equation 7s^2-21s=-14 ?

The solutions to the equation 7s^2-21s=-14 are s=2,s=1

Find the zeros of 7s^2-21s=-14

The zeros of 7s^2-21s=-14 are s=2,s=1

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

7 s^{2} - 21 s = - 14

s = 2, s = 1

Solution steps

7 s^{2} - 21 s = - 14

Move

14

to the left side

7 s^{2} - 21 s + 14 = 0

Solve with the quadratic formula

s_{1, 2} = \frac{- ( - 21 ) \pm ( - 21 ) ^{2} - 4 \cdot 7 \cdot 14}{2 \cdot 7}

(- 21)^{2} - 4 \cdot 7 \cdot 14 = 7

s_{1, 2} = \frac{- ( - 21 ) \pm 7}{2 \cdot 7}

Separate the solutions

s_{1} = \frac{- ( - 21 ) + 7}{2 \cdot 7}, s_{2} = \frac{- ( - 21 ) - 7}{2 \cdot 7}

s = \frac{- ( - 21 ) + 7}{2 \cdot 7} : 2

s = \frac{- ( - 21 ) - 7}{2 \cdot 7} : 1

The solutions to the quadratic equation are:

s = 2, s = 1

x, 3 x^{2} + 12 x + 6 = 0

3 x^{2} - 11 x + 2 = 0

(x - 2)^{2} + (x + 1)^{2} = 9

11 r^{2} - 15 r = - 4

5 x^{2} - 10 = 70

What are the solutions to the equation 7s^2-21s=-14 ?
The solutions to the equation 7s^2-21s=-14 are s=2,s=1
Find the zeros of 7s^2-21s=-14
The zeros of 7s^2-21s=-14 are s=2,s=1