-4.9x^2+4.9x+0.8=1.829

Simple and best practice solution for -4.9x^2+4.9x+0.8=1.829 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+4.9x+0.8=1.829 equation:


Simplifying
-4.9x2 + 4.9x + 0.8 = 1.829

Reorder the terms:
0.8 + 4.9x + -4.9x2 = 1.829

Solving
0.8 + 4.9x + -4.9x2 = 1.829

Solving for variable 'x'.

Reorder the terms:
0.8 + -1.829 + 4.9x + -4.9x2 = 1.829 + -1.829

Combine like terms: 0.8 + -1.829 = -1.029
-1.029 + 4.9x + -4.9x2 = 1.829 + -1.829

Combine like terms: 1.829 + -1.829 = 0.000
-1.029 + 4.9x + -4.9x2 = 0.000

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

Divide each side by '-4.9'.
0.21 + -1x + x2 = 0.00

Move the constant term to the right:

Add '-0.21' to each side of the equation.
0.21 + -1x + -0.21 + x2 = 0.00 + -0.21

Reorder the terms:
0.21 + -0.21 + -1x + x2 = 0.00 + -0.21

Combine like terms: 0.21 + -0.21 = 0.00
0.00 + -1x + x2 = 0.00 + -0.21
-1x + x2 = 0.00 + -0.21

Combine like terms: 0.00 + -0.21 = -0.21
-1x + x2 = -0.21

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -0.21 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -0.21 + 0.25

Combine like terms: -0.21 + 0.25 = 0.04
0.25 + -1x + x2 = 0.04

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 0.04

Calculate the square root of the right side: 0.2

Break this problem into two subproblems by setting 
(x + -0.5) equal to 0.2 and -0.2.

Subproblem 1

x + -0.5 = 0.2 Simplifying x + -0.5 = 0.2 Reorder the terms: -0.5 + x = 0.2 Solving -0.5 + x = 0.2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 0.2 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.2 + 0.5 x = 0.2 + 0.5 Combine like terms: 0.2 + 0.5 = 0.7 x = 0.7 Simplifying x = 0.7

Subproblem 2

x + -0.5 = -0.2 Simplifying x + -0.5 = -0.2 Reorder the terms: -0.5 + x = -0.2 Solving -0.5 + x = -0.2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -0.2 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.2 + 0.5 x = -0.2 + 0.5 Combine like terms: -0.2 + 0.5 = 0.3 x = 0.3 Simplifying x = 0.3

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7, 0.3}

See similar equations:

| -4(6n+6)=-24 | | a*15/2=-5/12 | | 3x+1y=36 | | 2x+1/8-x-1/3=5/24 | | (y*0.0675)+y=4 | | 4/3a=16 | | 450/50-25+10*3+10-5 | | 9/7t=-7/3 | | 6d^2-13d+6=0 | | 5/6x+2/3=11/4 | | 4-7x+2x=5(4-9x) | | 100*5/20*20-5*3 | | (2x-1)-(4x+6)=8 | | y=10-2x/8-9x | | x+7=108 | | 6x-14=108 | | r/8-2=-6 | | 5x+8=540 | | 10-2x/8-9x | | r/8-2 | | 6x-14=5x+8 | | 900*5-20+15-30*3-20+10= | | S=dB^2-8B-v | | 5x+8=5x+10 | | 5x+8=4x-17 | | r=15b/c^2 | | 20=2(u+8)-6u | | t(5+t)=2(2t+3) | | 3y+2x+14=0 | | 800/8*3+25-20+20*6/2 | | y-37=-85 | | 20+12b+b^2=0 |

Equations solver categories