What are the solutions to the equation 81s^2+126s=-49 ?

The solutions to the equation 81s^2+126s=-49 are s=-7/9

Find the zeros of 81s^2+126s=-49

The zeros of 81s^2+126s=-49 are s=-7/9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

81 s^{2} + 126 s = - 49

s = - \frac{7}{9}

Decimal Notation

s = - 0.77777 \dots

Solution steps

81 s^{2} + 126 s = - 49

Move

49

to the left side

81 s^{2} + 126 s + 49 = 0

Solve with the quadratic formula

s_{1, 2} = \frac{- 126 \pm 12 6 ^{2} - 4 \cdot 81 \cdot 49}{2 \cdot 81}

12 6^{2} - 4 \cdot 81 \cdot 49 = 0

s_{1, 2} = \frac{- 126 \pm 0}{2 \cdot 81}

s = \frac{- 126}{2 \cdot 81}

\frac{- 126}{2 \cdot 81} = - \frac{7}{9}

s = - \frac{7}{9}

The solution to the quadratic equation is:

s = - \frac{7}{9}

5 \leq 3 x - 4 \leq 14

- 55

d^{2} + 7 = 5

- d^{2} - 12 d + 4 = - 6 d^{2}

\frac{3229 - 79080}{245200}

What are the solutions to the equation 81s^2+126s=-49 ?
The solutions to the equation 81s^2+126s=-49 are s=-7/9
Find the zeros of 81s^2+126s=-49
The zeros of 81s^2+126s=-49 are s=-7/9