x^2-x=(-1)+4

Simple and best practice solution for x^2-x=(-1)+4 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^2-x=(-1)+4 equation:


Simplifying
x2 + -1x = (-1) + 4

Reorder the terms:
-1x + x2 = (-1) + 4
-1x + x2 = -1 + 4

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

Solving
-1x + x2 = 3

Solving for variable 'x'.

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

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

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -1x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + -1x + x2 = 0 + 3

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

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

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 = 3 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 3 + 0.25

Combine like terms: 3 + 0.25 = 3.25
0.25 + -1x + x2 = 3.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(x + -0.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + -0.5 = 1.802775638 Simplifying x + -0.5 = 1.802775638 Reorder the terms: -0.5 + x = 1.802775638 Solving -0.5 + x = 1.802775638 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 = 1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 1.802775638 + 0.5 x = 1.802775638 + 0.5 Combine like terms: 1.802775638 + 0.5 = 2.302775638 x = 2.302775638 Simplifying x = 2.302775638

Subproblem 2

x + -0.5 = -1.802775638 Simplifying x + -0.5 = -1.802775638 Reorder the terms: -0.5 + x = -1.802775638 Solving -0.5 + x = -1.802775638 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 = -1.802775638 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -1.802775638 + 0.5 x = -1.802775638 + 0.5 Combine like terms: -1.802775638 + 0.5 = -1.302775638 x = -1.302775638 Simplifying x = -1.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.302775638, -1.302775638}

See similar equations:

| 0.5x+3y=9 | | x^2-x=(2)-2 | | (4m-1)+(3m-8)= | | x-4y=18 | | -3y-28=6y | | 90/x-90/(x-1)=3/x | | y=-5(3)+3 | | 90=.2(100+X) | | 1/4(x-12)= | | y=-5(0)+3 | | (2x+13)/3+(x-13)/4=15/2 | | 5k=9/10 | | 4a^2+6ab^2+4ab+6b^3= | | 1/2=x+1/8 | | 11x-13y=-19 | | -0.5x^2+1.5x-1=0 | | 2/5=y-8/9 | | 2x^2+2x^3=160 | | 8x(4x+3)-5x=1 | | 5k=14/15 | | 7=3x+3b | | 6x=1/12 | | 2x^3y+8x^2y-6xy= | | 3(2m-9+6m)=3m+29-7 | | 60p+5=75p+2 | | (5x-3z)(5x+3z)= | | 4/7=y-8/9 | | 9y^2-16x^2-18y-64x-199=0 | | -1/2(8+6)= | | -4s+12=60 | | 2x-12(x-3)=5(5-2x) | | 7/8=x+2/3 |

Equations solver categories