x^2-5x-33=4x+9

Simple and best practice solution for x^2-5x-33=4x+9 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^2-5x-33=4x+9 equation:


Simplifying
x2 + -5x + -33 = 4x + 9

Reorder the terms:
-33 + -5x + x2 = 4x + 9

Reorder the terms:
-33 + -5x + x2 = 9 + 4x

Solving
-33 + -5x + x2 = 9 + 4x

Solving for variable 'x'.

Reorder the terms:
-33 + -9 + -5x + -4x + x2 = 9 + 4x + -9 + -4x

Combine like terms: -33 + -9 = -42
-42 + -5x + -4x + x2 = 9 + 4x + -9 + -4x

Combine like terms: -5x + -4x = -9x
-42 + -9x + x2 = 9 + 4x + -9 + -4x

Reorder the terms:
-42 + -9x + x2 = 9 + -9 + 4x + -4x

Combine like terms: 9 + -9 = 0
-42 + -9x + x2 = 0 + 4x + -4x
-42 + -9x + x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
-42 + -9x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '42' to each side of the equation.
-42 + -9x + 42 + x2 = 0 + 42

Reorder the terms:
-42 + 42 + -9x + x2 = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -9x + x2 = 0 + 42
-9x + x2 = 0 + 42

Combine like terms: 0 + 42 = 42
-9x + x2 = 42

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = 42 + 20.25

Reorder the terms:
20.25 + -9x + x2 = 42 + 20.25

Combine like terms: 42 + 20.25 = 62.25
20.25 + -9x + x2 = 62.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = 62.25

Calculate the square root of the right side: 7.889866919

Break this problem into two subproblems by setting 
(x + -4.5) equal to 7.889866919 and -7.889866919.

Subproblem 1

x + -4.5 = 7.889866919 Simplifying x + -4.5 = 7.889866919 Reorder the terms: -4.5 + x = 7.889866919 Solving -4.5 + x = 7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 7.889866919 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 7.889866919 + 4.5 x = 7.889866919 + 4.5 Combine like terms: 7.889866919 + 4.5 = 12.389866919 x = 12.389866919 Simplifying x = 12.389866919

Subproblem 2

x + -4.5 = -7.889866919 Simplifying x + -4.5 = -7.889866919 Reorder the terms: -4.5 + x = -7.889866919 Solving -4.5 + x = -7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -7.889866919 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -7.889866919 + 4.5 x = -7.889866919 + 4.5 Combine like terms: -7.889866919 + 4.5 = -3.389866919 x = -3.389866919 Simplifying x = -3.389866919

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.389866919, -3.389866919}

See similar equations:

| 15+0.50x=25+0.25 | | x-5=-1-3(x+8) | | 3y+2x=150 | | 0.3x+5=14 | | 3(x+2)-5=7-4(-2x+1) | | 8n^2=8n | | 5x+3=72 | | 2cos(2x)-2cos(x)=0 | | 2x+46=3+8x-5 | | 21+21=42 | | 14*+14=17 | | 120x^2+67x-5=0 | | 118=2x+22 | | 64y^2+4y-3=0 | | 3x+7=112 | | p(7p-3)= | | 48x^2+46x+5=0 | | 3z+7=112 | | a^2+2.88A-3.88=0 | | -2x+5=5x+8+x | | 2x+4=6x-100 | | 20*50=x | | 20*52=x | | 20*50= | | 7tan(3x)=7 | | 3x+2=49 | | 9(2k+3)+2=11(k-3.6) | | 25(-2x+5)=13x+3 | | 7(y-8)+24=2.7(y-6) | | 2.5-x=3(3.5-x) | | -y=12x+6x^2-8 | | 2x+32=40 |

Equations solver categories