17=x^2-x

Simple and best practice solution for 17=x^2-x 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 17=x^2-x equation:


Simplifying
17 = x2 + -1x

Reorder the terms:
17 = -1x + x2

Solving
17 = -1x + x2

Solving for variable 'x'.

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

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

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

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

Divide each side by '-1'.
-17 + -1x + x2 = 0

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + -1x + 17 + x2 = 0 + 17

Reorder the terms:
-17 + 17 + -1x + x2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -1x + x2 = 0 + 17
-1x + x2 = 0 + 17

Combine like terms: 0 + 17 = 17
-1x + x2 = 17

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.
-1x + 0.25 + x2 = 17 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 17 + 0.25

Combine like terms: 17 + 0.25 = 17.25
0.25 + -1x + x2 = 17.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 17.25

Calculate the square root of the right side: 4.153311931

Break this problem into two subproblems by setting 
(x + 0.5) equal to 4.153311931 and -4.153311931.

Subproblem 1

x + 0.5 = 4.153311931 Simplifying x + 0.5 = 4.153311931 Reorder the terms: 0.5 + x = 4.153311931 Solving 0.5 + x = 4.153311931 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 = 4.153311931 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 4.153311931 + -0.5 x = 4.153311931 + -0.5 Combine like terms: 4.153311931 + -0.5 = 3.653311931 x = 3.653311931 Simplifying x = 3.653311931

Subproblem 2

x + 0.5 = -4.153311931 Simplifying x + 0.5 = -4.153311931 Reorder the terms: 0.5 + x = -4.153311931 Solving 0.5 + x = -4.153311931 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 = -4.153311931 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -4.153311931 + -0.5 x = -4.153311931 + -0.5 Combine like terms: -4.153311931 + -0.5 = -4.653311931 x = -4.653311931 Simplifying x = -4.653311931

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.653311931, -4.653311931}

See similar equations:

| X/2=5/2 | | -42-(-2)=x/8 | | 45+5y-11=16y-11-2y | | 2x-(6x-10)= | | 9x/18=5 | | 45y+5y-11=16y-11-2y | | 2(3x+4)+6(x-4)= | | 4/9/-24 | | 7x+6-6x=10 | | (4/9)/-24 | | 3x-(6x-5)= | | 2x-(3x-11)= | | 7n/7 | | 10x-6=2x+8 | | a+98-19=226 | | 17=3x-11 | | y^6-8y^3=-16 | | x=-1andy | | -9w-27=9(w-5) | | 7+2+12x=-15 | | 12x^2-16x-1=0 | | 3(b+4)=4b+4 | | -9rs^2(2s^6-5r^5+7)= | | x^2+-49=0 | | x^2-49=40 | | 6x+16=7x+10 | | -8x-9y=-19 | | 3x^2+12=4x^2+11x | | 3x+2=3-5 | | 1x^2+14x+5=0 | | 18+182=41+182 | | 4sin(1/3)x |

Equations solver categories