x^2-10x+18=

Simple and best practice solution for x^2-10x+18= 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^2-10x+18= equation:


Simplifying
x2 + -10x + 18 = 0

Reorder the terms:
18 + -10x + x2 = 0

Solving
18 + -10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -10x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + -10x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -10x + x2 = 0 + -18
-10x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
-10x + x2 = -18

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -18 + 25

Reorder the terms:
25 + -10x + x2 = -18 + 25

Combine like terms: -18 + 25 = 7
25 + -10x + x2 = 7

Factor a perfect square on the left side:
(x + -5)(x + -5) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + -5) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + -5 = 2.645751311 Simplifying x + -5 = 2.645751311 Reorder the terms: -5 + x = 2.645751311 Solving -5 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + x = 2.645751311 + 5 x = 2.645751311 + 5 Combine like terms: 2.645751311 + 5 = 7.645751311 x = 7.645751311 Simplifying x = 7.645751311

Subproblem 2

x + -5 = -2.645751311 Simplifying x + -5 = -2.645751311 Reorder the terms: -5 + x = -2.645751311 Solving -5 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -2.645751311 + 5 Combine like terms: -5 + 5 = 0 0 + x = -2.645751311 + 5 x = -2.645751311 + 5 Combine like terms: -2.645751311 + 5 = 2.354248689 x = 2.354248689 Simplifying x = 2.354248689

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.645751311, 2.354248689}

See similar equations:

| -2(4+4p)=-32-4p | | 61/4+71/2 | | 1.59+7/5 | | 5x+130=3x+98 | | 9/8-2/4 | | -2/6+8/10 | | 3/2-3/12 | | -7/5+4/2 | | -1/8+7/10 | | 9x-50=7x-16 | | 5x+116=3x+128 | | 2b+8(b+6)=-6(-8+6b) | | ln(x-1)-ln(x+4)=5 | | (8)4/3= | | 7s-4+2a=3a-2 | | -7y-4x=-2 | | 3(2+y)-4y=y+16 | | 9x-97=6x-49 | | 7y+x=8 | | 4x=-2(-x+3) | | -7x-4x=-2 | | .1x^2+60x+1000=0 | | 3k^2-5k-2=0 | | 6-3x=135 | | 47=2+x | | 4x^2-y^2z^2= | | 5x+5(x+1)=35 | | 146x=-84 | | 15n+6=11n+2(2n-1) | | 9u-1/3u-6 | | -7.5x-2=1-x^2 | | 5x=6+3 |

Equations solver categories