x^2-14x-17=0

Simple and best practice solution for x^2-14x-17=0 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^2-14x-17=0 equation:


Simplifying
x2 + -14x + -17 = 0

Reorder the terms:
-17 + -14x + x2 = 0

Solving
-17 + -14x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + -14x + 17 + x2 = 0 + 17

Reorder the terms:
-17 + 17 + -14x + x2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -14x + x2 = 0 + 17
-14x + x2 = 0 + 17

Combine like terms: 0 + 17 = 17
-14x + x2 = 17

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = 17 + 49

Reorder the terms:
49 + -14x + x2 = 17 + 49

Combine like terms: 17 + 49 = 66
49 + -14x + x2 = 66

Factor a perfect square on the left side:
(x + -7)(x + -7) = 66

Calculate the square root of the right side: 8.124038405

Break this problem into two subproblems by setting 
(x + -7) equal to 8.124038405 and -8.124038405.

Subproblem 1

x + -7 = 8.124038405 Simplifying x + -7 = 8.124038405 Reorder the terms: -7 + x = 8.124038405 Solving -7 + x = 8.124038405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 8.124038405 + 7 Combine like terms: -7 + 7 = 0 0 + x = 8.124038405 + 7 x = 8.124038405 + 7 Combine like terms: 8.124038405 + 7 = 15.124038405 x = 15.124038405 Simplifying x = 15.124038405

Subproblem 2

x + -7 = -8.124038405 Simplifying x + -7 = -8.124038405 Reorder the terms: -7 + x = -8.124038405 Solving -7 + x = -8.124038405 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = -8.124038405 + 7 Combine like terms: -7 + 7 = 0 0 + x = -8.124038405 + 7 x = -8.124038405 + 7 Combine like terms: -8.124038405 + 7 = -1.124038405 x = -1.124038405 Simplifying x = -1.124038405

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.124038405, -1.124038405}

See similar equations:

| 2(2x+3)=42 | | 6x+2.7-4.3x=.5x-2.7 | | 4q+p+6=5 | | X^3-y^3=231 | | 10p+10=200 | | 6x-12=47 | | 2x=13.86x-11.88 | | 4x^2-5xy-5y^3=9 | | 44=2a+(a+10) | | 4d+8=3(2d+1) | | 38=X+90 | | 9(x+9)=5[x-(8-x)] | | 7x+8x-2x-5=8 | | w-11=27 | | 2x^2-4x+p=0 | | (1+3i)(1-4i)=0 | | 3(n-4)=21 | | X+73+(X-44)=180 | | D^3y-6D^2y+11Dy-6y=0 | | -4y-7(4y-9)=2-3(-3-y) | | 19.00x+1.50=15.00x+2.27 | | 2(n-4)=21 | | -y-7(4y-9)=2-3(-3-y) | | 8x-28= | | -3x^4+27x+1200=0 | | 2x+10+x+20=90 | | 3X-2X+X+3=O | | 5x+6x-2x-5=4 | | .25f=10 | | X^2x=56 | | w-15=24 | | 4r+7=15 |

Equations solver categories