4.9x^2+3x+1.8=0

Simple and best practice solution for 4.9x^2+3x+1.8=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4.9x^2+3x+1.8=0 equation: 


Simplifying
4.9x2 + 3x + 1.8 = 0

Reorder the terms:
1.8 + 3x + 4.9x2 = 0

Solving
1.8 + 3x + 4.9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4.9 the coefficient of the squared term: 

Divide each side by '4.9'.
0.3673469388 + 0.612244898x + x2 = 0

Move the constant term to the right:

Add '-0.3673469388' to each side of the equation.
0.3673469388 + 0.612244898x + -0.3673469388 + x2 = 0 + -0.3673469388

Reorder the terms:
0.3673469388 + -0.3673469388 + 0.612244898x + x2 = 0 + -0.3673469388

Combine like terms: 0.3673469388 + -0.3673469388 = 0.0000000000
0.0000000000 + 0.612244898x + x2 = 0 + -0.3673469388
0.612244898x + x2 = 0 + -0.3673469388

Combine like terms: 0 + -0.3673469388 = -0.3673469388
0.612244898x + x2 = -0.3673469388

The x term is 0.612244898x.  Take half its coefficient (0.306122449).
Square it (0.09371095378) and add it to both sides.

Add '0.09371095378' to each side of the equation.
0.612244898x + 0.09371095378 + x2 = -0.3673469388 + 0.09371095378

Reorder the terms:
0.09371095378 + 0.612244898x + x2 = -0.3673469388 + 0.09371095378

Combine like terms: -0.3673469388 + 0.09371095378 = -0.27363598502
0.09371095378 + 0.612244898x + x2 = -0.27363598502

Factor a perfect square on the left side:
(x + 0.306122449)(x + 0.306122449) = -0.27363598502

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 1/2y-2/5=-6y+3/2 | | 36v^2-400=0 | | a+1=2a+5 | | 50-2(x+5)=7x-10 | | 5.6q-1.3-5.9q=-1.3q-3.1 | | -7(5x-5)=4 | | (x-3)2=11-5 | | 6+4*x=34 | | 12u-8u=32 | | |y-5|-2=10 | | 3/4-3/5=19/20 | | 1.3333333333-4k=1.33333333-5k | | -3/2y+4=-1/3y-1/6 | | 5s(14s+9)=0 | | -120s+3000=-160s+4000 | | 1-n=-11+3n | | 12a^2-25a+12= | | 3(y-2)/5=-3y | | 1x+96+1x+96=180 | | 4u-8+2(2u+4)=-6(u+1) | | 7-a=4-2a | | X=450(1/2)+0.09 | | (x+2)3=144 | | {-4}+{+5}= | | 1+3(5v-3)=-3(2v-2)+9v | | -4t^2+6=-3t | | -2x-7(2x+6)=134 | | -2.5(1.4+n)=1.5 | | 11x=-6 | | 3y-y^2=-70 | | -2(6x-1)+5x=5(x+2) | | w(2w-3)=90 |

Equations solver categories