(x)=x^2+4x-6

Simple and best practice solution for (x)=x^2+4x-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 (x)=x^2+4x-6 equation:


Simplifying
(x) = x2 + 4x + -6
x = x2 + 4x + -6

Reorder the terms:
x = -6 + 4x + x2

Solving
x = -6 + 4x + x2

Solving for variable 'x'.

Reorder the terms:
6 + x + -4x + -1x2 = -6 + 4x + x2 + 6 + -4x + -1x2

Combine like terms: x + -4x = -3x
6 + -3x + -1x2 = -6 + 4x + x2 + 6 + -4x + -1x2

Reorder the terms:
6 + -3x + -1x2 = -6 + 6 + 4x + -4x + x2 + -1x2

Combine like terms: -6 + 6 = 0
6 + -3x + -1x2 = 0 + 4x + -4x + x2 + -1x2
6 + -3x + -1x2 = 4x + -4x + x2 + -1x2

Combine like terms: 4x + -4x = 0
6 + -3x + -1x2 = 0 + x2 + -1x2
6 + -3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
6 + -3x + -1x2 = 0

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

Divide each side by '-1'.
-6 + 3x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 3x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + 3x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 3x + x2 = 0 + 6
3x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
3x + x2 = 6

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 6 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 6 + 2.25

Combine like terms: 6 + 2.25 = 8.25
2.25 + 3x + x2 = 8.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + 1.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + 1.5 = 2.872281323 Simplifying x + 1.5 = 2.872281323 Reorder the terms: 1.5 + x = 2.872281323 Solving 1.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.872281323 + -1.5 x = 2.872281323 + -1.5 Combine like terms: 2.872281323 + -1.5 = 1.372281323 x = 1.372281323 Simplifying x = 1.372281323

Subproblem 2

x + 1.5 = -2.872281323 Simplifying x + 1.5 = -2.872281323 Reorder the terms: 1.5 + x = -2.872281323 Solving 1.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.872281323 + -1.5 x = -2.872281323 + -1.5 Combine like terms: -2.872281323 + -1.5 = -4.372281323 x = -4.372281323 Simplifying x = -4.372281323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.372281323, -4.372281323}

See similar equations:

| -0.01x^2+30x-4000=y | | f(x)=x^2+4x-6(x-2) | | -6x+14=-12 | | f(x)=x^2+4x-6x-2 | | (8-7+9)-8(-8+3-9)= | | [9(p+5)-17]+[2(p-2)+1]= | | 1296a^4-p^4= | | 8x^2+16x-37=5 | | -5+x=-2x+10 | | [7(b+5)-17]+[2(b+2)+5]= | | 3x^2+10x-125=0 | | x+18=-36 | | y=x^3-9x^2+15x-10 | | 1.25x^2=57600 | | f(x)=x^3-3x-a | | 7a=29(a-10) | | 4x-3.7=3x-1.8 | | 5a+6b=10 | | 9-(-n+4)=4(-2n+2)+1 | | 9=11x-2 | | 3.6x+6=-2+2x | | 5x^2-20x=x^2+8x-49 | | z^2+5x+4=0 | | x*x+12x+19=0 | | k^2-6k-17=0 | | y^4-9y^2+20=0 | | 1.4x-3=2+x | | -sin(t)-2sin(2t)=0 | | 2=-2x+4 | | -3x+9=9-3 | | 3+2q=21 | | 6=-2+4 |

Equations solver categories