(x+6)(x-2)=22

Simple and best practice solution for (x+6)(x-2)=22 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+6)(x-2)=22 equation:


Simplifying
(x + 6)(x + -2) = 22

Reorder the terms:
(6 + x)(x + -2) = 22

Reorder the terms:
(6 + x)(-2 + x) = 22

Multiply (6 + x) * (-2 + x)
(6(-2 + x) + x(-2 + x)) = 22
((-2 * 6 + x * 6) + x(-2 + x)) = 22
((-12 + 6x) + x(-2 + x)) = 22
(-12 + 6x + (-2 * x + x * x)) = 22
(-12 + 6x + (-2x + x2)) = 22

Combine like terms: 6x + -2x = 4x
(-12 + 4x + x2) = 22

Solving
-12 + 4x + x2 = 22

Solving for variable 'x'.

Reorder the terms:
-12 + -22 + 4x + x2 = 22 + -22

Combine like terms: -12 + -22 = -34
-34 + 4x + x2 = 22 + -22

Combine like terms: 22 + -22 = 0
-34 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '34' to each side of the equation.
-34 + 4x + 34 + x2 = 0 + 34

Reorder the terms:
-34 + 34 + 4x + x2 = 0 + 34

Combine like terms: -34 + 34 = 0
0 + 4x + x2 = 0 + 34
4x + x2 = 0 + 34

Combine like terms: 0 + 34 = 34
4x + x2 = 34

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 34 + 4

Reorder the terms:
4 + 4x + x2 = 34 + 4

Combine like terms: 34 + 4 = 38
4 + 4x + x2 = 38

Factor a perfect square on the left side:
(x + 2)(x + 2) = 38

Calculate the square root of the right side: 6.164414003

Break this problem into two subproblems by setting 
(x + 2) equal to 6.164414003 and -6.164414003.

Subproblem 1

x + 2 = 6.164414003 Simplifying x + 2 = 6.164414003 Reorder the terms: 2 + x = 6.164414003 Solving 2 + x = 6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 6.164414003 + -2 Combine like terms: 2 + -2 = 0 0 + x = 6.164414003 + -2 x = 6.164414003 + -2 Combine like terms: 6.164414003 + -2 = 4.164414003 x = 4.164414003 Simplifying x = 4.164414003

Subproblem 2

x + 2 = -6.164414003 Simplifying x + 2 = -6.164414003 Reorder the terms: 2 + x = -6.164414003 Solving 2 + x = -6.164414003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -6.164414003 + -2 Combine like terms: 2 + -2 = 0 0 + x = -6.164414003 + -2 x = -6.164414003 + -2 Combine like terms: -6.164414003 + -2 = -8.164414003 x = -8.164414003 Simplifying x = -8.164414003

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.164414003, -8.164414003}

See similar equations:

| (x-7)(x+2)=22 | | 12n=44 | | x/8=7/5 | | 7x+8f(x)=67 | | 190=35w-30-14w-10 | | 48=5x-8+18x+10 | | 200/0 | | 4+8+12= | | 4.4=0.7x-0.52 | | 7+11+3C=25 | | 18x+18-45x-35=-190 | | 7+2B+3C=25 | | 1A+2B+3C=25 | | 63v+35=5v-25+350 | | 315=x^2(1.5x) | | f(x)=4x^2-5x+1 | | (7-x)(5x+6)=0 | | 127=3x+x+7 | | 15y-10=20-3y-9 | | b+2=3a-b | | 2(2z-29)=3(2z-29) | | R(x)=1-3x+x | | Ifx=4 | | a^2+14a+13=0 | | 5x+15=6x+44 | | 5x-15=6x+44 | | c=4x-8 | | -7(8-8x)+2=10-8x | | 36-9*5+23= | | -20w-25=60w-3 | | -25-(8y^2)+(4y^3)=0 | | 2v-30=-3v+7 |

Equations solver categories