(x-5)(x+2)=6

Simple and best practice solution for (x-5)(x+2)=6 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-5)(x+2)=6 equation:


Simplifying
(x + -5)(x + 2) = 6

Reorder the terms:
(-5 + x)(x + 2) = 6

Reorder the terms:
(-5 + x)(2 + x) = 6

Multiply (-5 + x) * (2 + x)
(-5(2 + x) + x(2 + x)) = 6
((2 * -5 + x * -5) + x(2 + x)) = 6
((-10 + -5x) + x(2 + x)) = 6
(-10 + -5x + (2 * x + x * x)) = 6
(-10 + -5x + (2x + x2)) = 6

Combine like terms: -5x + 2x = -3x
(-10 + -3x + x2) = 6

Solving
-10 + -3x + x2 = 6

Solving for variable 'x'.

Reorder the terms:
-10 + -6 + -3x + x2 = 6 + -6

Combine like terms: -10 + -6 = -16
-16 + -3x + x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-16 + -3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -3x + 16 + x2 = 0 + 16

Reorder the terms:
-16 + 16 + -3x + x2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -3x + x2 = 0 + 16
-3x + x2 = 0 + 16

Combine like terms: 0 + 16 = 16
-3x + x2 = 16

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 16 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 16 + 2.25

Combine like terms: 16 + 2.25 = 18.25
2.25 + -3x + x2 = 18.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 18.25

Calculate the square root of the right side: 4.272001873

Break this problem into two subproblems by setting 
(x + -1.5) equal to 4.272001873 and -4.272001873.

Subproblem 1

x + -1.5 = 4.272001873 Simplifying x + -1.5 = 4.272001873 Reorder the terms: -1.5 + x = 4.272001873 Solving -1.5 + x = 4.272001873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 4.272001873 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 4.272001873 + 1.5 x = 4.272001873 + 1.5 Combine like terms: 4.272001873 + 1.5 = 5.772001873 x = 5.772001873 Simplifying x = 5.772001873

Subproblem 2

x + -1.5 = -4.272001873 Simplifying x + -1.5 = -4.272001873 Reorder the terms: -1.5 + x = -4.272001873 Solving -1.5 + x = -4.272001873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -4.272001873 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -4.272001873 + 1.5 x = -4.272001873 + 1.5 Combine like terms: -4.272001873 + 1.5 = -2.772001873 x = -2.772001873 Simplifying x = -2.772001873

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.772001873, -2.772001873}

See similar equations:

| 6-4x=-2(x-4) | | 8-(4x+6)=22 | | x-12=42 | | 81x^2-27x-28=0 | | 48=937+75 | | y=12x^2+6x^2 | | 7+9x(3+8)= | | 4n+3=6n-3 | | 12-23=7(9-c) | | 4a^3+2a=0 | | y=(6)(x^2+3) | | 65-12*x=10 | | -3=-.3h-10 | | 5(x-4)=7x-6 | | 2x+125-x+163=38 | | y=6x(2x) | | 8-(4+b)=b-9 | | -0.5(2x-6)=2x | | .2x-.8=2.5 | | 6(b)=-96 | | 6x+5x-1=0 | | 5x=30-2(10) | | 15=8+-a | | 20+4k=108 | | 5x=30-2(8) | | -0.03y+0.09(8000-y)=0.38y | | 5(x-4)=7a-6 | | (8x-7)+15=(3x-7)-20 | | 5x=30-2(4) | | =10w^2-4w+3w^2+18w | | X^2+12+11=0 | | 2p^2-5p=1 |

Equations solver categories