5x^2-22x-12=

Simple and best practice solution for 5x^2-22x-12= 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 5x^2-22x-12= equation:


Simplifying
5x2 + -22x + -12 = 0

Reorder the terms:
-12 + -22x + 5x2 = 0

Solving
-12 + -22x + 5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
-2.4 + -4.4x + x2 = 0

Move the constant term to the right:

Add '2.4' to each side of the equation.
-2.4 + -4.4x + 2.4 + x2 = 0 + 2.4

Reorder the terms:
-2.4 + 2.4 + -4.4x + x2 = 0 + 2.4

Combine like terms: -2.4 + 2.4 = 0.0
0.0 + -4.4x + x2 = 0 + 2.4
-4.4x + x2 = 0 + 2.4

Combine like terms: 0 + 2.4 = 2.4
-4.4x + x2 = 2.4

The x term is -4.4x.  Take half its coefficient (-2.2).
Square it (4.84) and add it to both sides.

Add '4.84' to each side of the equation.
-4.4x + 4.84 + x2 = 2.4 + 4.84

Reorder the terms:
4.84 + -4.4x + x2 = 2.4 + 4.84

Combine like terms: 2.4 + 4.84 = 7.24
4.84 + -4.4x + x2 = 7.24

Factor a perfect square on the left side:
(x + -2.2)(x + -2.2) = 7.24

Calculate the square root of the right side: 2.690724809

Break this problem into two subproblems by setting 
(x + -2.2) equal to 2.690724809 and -2.690724809.

Subproblem 1

x + -2.2 = 2.690724809 Simplifying x + -2.2 = 2.690724809 Reorder the terms: -2.2 + x = 2.690724809 Solving -2.2 + x = 2.690724809 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = 2.690724809 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = 2.690724809 + 2.2 x = 2.690724809 + 2.2 Combine like terms: 2.690724809 + 2.2 = 4.890724809 x = 4.890724809 Simplifying x = 4.890724809

Subproblem 2

x + -2.2 = -2.690724809 Simplifying x + -2.2 = -2.690724809 Reorder the terms: -2.2 + x = -2.690724809 Solving -2.2 + x = -2.690724809 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = -2.690724809 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = -2.690724809 + 2.2 x = -2.690724809 + 2.2 Combine like terms: -2.690724809 + 2.2 = -0.490724809 x = -0.490724809 Simplifying x = -0.490724809

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.890724809, -0.490724809}

See similar equations:

| 61+4x-13=180 | | 3.7x=2 | | 4n^2=7 | | 0.03x=800-0.05x | | 2*ln*4*x=1.5 | | 4n^2+13=20 | | 15+24x=25-xfraction | | H(t)=-16t^2+128t+4 | | -4n^2-13=-20 | | x+x+1=4y+y+2 | | 3x+-15=7x+4 | | 15+24x=25-x | | 8xwhat=50 | | 4-0.2n=28.2 | | 31-7x=-88 | | -x+2=x-2+x | | 35+7x=-77 | | 4(b-450)=75 | | 118=10x-12 | | 75(450-b)=4 | | 6(2x+8)=2(x-1) | | 34-6x=124 | | 4(450-b)=75 | | -12=3(x-4)-3x | | 4y^2-[-3y-(19y^2-4y)]-[5+(-9y-5)]= | | 5-4x-6=7 | | 29-3x=-13 | | 4(75-b)=450 | | 9+2x-17=144 | | 25+3x=61 | | -10=-14v+14x | | log(16)*8=x |

Equations solver categories