What are the solutions to the equation 4.9x^2+8x-30=0 ?

The solutions to the equation 4.9x^2+8x-30=0 are x=(10(sqrt(163)-4))/(49),x=-(10(4+sqrt(163)))/(49)

Find the zeros of 4.9x^2+8x-30=0

The zeros of 4.9x^2+8x-30=0 are x=(10(sqrt(163)-4))/(49),x=-(10(4+sqrt(163)))/(49)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4.9 x^{2} + 8 x - 30 = 0

x = \frac{10 ( 163 - 4 )}{49}, x = - \frac{10 ( 4 + 163 )}{49}

Decimal Notation

x = 1.78921 \dots, x = - 3.42186 \dots

Solution steps

4.9 x^{2} + 8 x - 30 = 0

Multiply both sides by

10

49 x^{2} + 80 x - 300 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 80 \pm 8 0 ^{2} - 4 \cdot 49 ( - 300 )}{2 \cdot 49}

8 0^{2} - 4 \cdot 49 (- 300) = 20163

x_{1, 2} = \frac{- 80 \pm 20 163}{2 \cdot 49}

Separate the solutions

x_{1} = \frac{- 80 + 20 163}{2 \cdot 49}, x_{2} = \frac{- 80 - 20 163}{2 \cdot 49}

x = \frac{- 80 + 20 163}{2 \cdot 49} : \frac{10 ( 163 - 4 )}{49}

x = \frac{- 80 - 20 163}{2 \cdot 49} : - \frac{10 ( 4 + 163 )}{49}

The solutions to the quadratic equation are:

x = \frac{10 ( 163 - 4 )}{49}, x = - \frac{10 ( 4 + 163 )}{49}

(2 x + 2)^{2} - 12 = 4

u^{2} + 4 u + 3 = 0

- 3 x + x^{2} - 4 = - 8 + x

6 x (x - 1) = 63 - 19 x

6 x^{2} - x - 15 = 0

What are the solutions to the equation 4.9x^2+8x-30=0 ?
The solutions to the equation 4.9x^2+8x-30=0 are x=(10(sqrt(163)-4))/(49),x=-(10(4+sqrt(163)))/(49)
Find the zeros of 4.9x^2+8x-30=0
The zeros of 4.9x^2+8x-30=0 are x=(10(sqrt(163)-4))/(49),x=-(10(4+sqrt(163)))/(49)