0=x^2+x-4.6

Simple and best practice solution for 0=x^2+x-4.6 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 0=x^2+x-4.6 equation:


Simplifying
0 = x2 + x + -4.6

Reorder the terms:
0 = -4.6 + x + x2

Solving
0 = -4.6 + x + x2

Solving for variable 'x'.

Combine like terms: 0 + 4.6 = 4.6
4.6 + -1x + -1x2 = -4.6 + x + x2 + 4.6 + -1x + -1x2

Reorder the terms:
4.6 + -1x + -1x2 = -4.6 + 4.6 + x + -1x + x2 + -1x2

Combine like terms: -4.6 + 4.6 = 0.0
4.6 + -1x + -1x2 = 0.0 + x + -1x + x2 + -1x2
4.6 + -1x + -1x2 = x + -1x + x2 + -1x2

Combine like terms: x + -1x = 0
4.6 + -1x + -1x2 = 0 + x2 + -1x2
4.6 + -1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
4.6 + -1x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-4.6 + x + x2 = 0

Move the constant term to the right:

Add '4.6' to each side of the equation.
-4.6 + x + 4.6 + x2 = 0 + 4.6

Reorder the terms:
-4.6 + 4.6 + x + x2 = 0 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
0.0 + x + x2 = 0 + 4.6
x + x2 = 0 + 4.6

Combine like terms: 0 + 4.6 = 4.6
x + x2 = 4.6

The x term is x.  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.
 + 0.25 + x2 = 4.6 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 4.6 + 0.25

Combine like terms: 4.6 + 0.25 = 4.85
1.25 + x2 = 4.85

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 4.85

Calculate the square root of the right side: 2.202271555

Break this problem into two subproblems by setting 
(x + 0.5) equal to 2.202271555 and -2.202271555.

Subproblem 1

x + 0.5 = 2.202271555 Simplifying x + 0.5 = 2.202271555 Reorder the terms: 0.5 + x = 2.202271555 Solving 0.5 + x = 2.202271555 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 = 2.202271555 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.202271555 + -0.5 x = 2.202271555 + -0.5 Combine like terms: 2.202271555 + -0.5 = 1.702271555 x = 1.702271555 Simplifying x = 1.702271555

Subproblem 2

x + 0.5 = -2.202271555 Simplifying x + 0.5 = -2.202271555 Reorder the terms: 0.5 + x = -2.202271555 Solving 0.5 + x = -2.202271555 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 = -2.202271555 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.202271555 + -0.5 x = -2.202271555 + -0.5 Combine like terms: -2.202271555 + -0.5 = -2.702271555 x = -2.702271555 Simplifying x = -2.702271555

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.702271555, -2.702271555}

See similar equations:

| 20y+2=102 | | 10x-5=6x+43 | | 3(2x-6)=2-4x | | e^4=8x | | 5x-2x-7=x | | 67x=134 | | 5y-9fory=12 | | ln(10+x)=6+lnx | | -8y^2+10y=0 | | -7-(-2.8)=0 | | f(x)=15x^2+30x | | -18n+16=-16n-10 | | 20x+87= | | 3x-x+4=4(x-1) | | 6y=12x-30 | | 6x+1=6(5)+1 | | 4y-6+2y-3=90 | | x+2+7=3x-7 | | y-40=-10 | | 37=-16x^2+48x+5 | | 2x+7=5+2x+(x+3) | | 12x^2-8kx+k^2=0 | | 6(2y+8)-2(3y-2)= | | 9x=2+5 | | 27+5g=27-3g | | 6-1/3x-1211 | | 3w-6w=-24 | | 2(x+3)+4(x+1)=5(x-1)+x+3 | | 27+5=27-3g | | 9x+5=3X+71 | | 2.50h+19=3.75h+13 | | -7/3(-7/3) |

Equations solver categories