5x^2+32x-36=0

Simple and best practice solution for 5x^2+32x-36=0 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+32x-36=0 equation:


Simplifying
5x2 + 32x + -36 = 0

Reorder the terms:
-36 + 32x + 5x2 = 0

Solving
-36 + 32x + 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'.
-7.2 + 6.4x + x2 = 0

Move the constant term to the right:

Add '7.2' to each side of the equation.
-7.2 + 6.4x + 7.2 + x2 = 0 + 7.2

Reorder the terms:
-7.2 + 7.2 + 6.4x + x2 = 0 + 7.2

Combine like terms: -7.2 + 7.2 = 0.0
0.0 + 6.4x + x2 = 0 + 7.2
6.4x + x2 = 0 + 7.2

Combine like terms: 0 + 7.2 = 7.2
6.4x + x2 = 7.2

The x term is 6.4x.  Take half its coefficient (3.2).
Square it (10.24) and add it to both sides.

Add '10.24' to each side of the equation.
6.4x + 10.24 + x2 = 7.2 + 10.24

Reorder the terms:
10.24 + 6.4x + x2 = 7.2 + 10.24

Combine like terms: 7.2 + 10.24 = 17.44
10.24 + 6.4x + x2 = 17.44

Factor a perfect square on the left side:
(x + 3.2)(x + 3.2) = 17.44

Calculate the square root of the right side: 4.176122604

Break this problem into two subproblems by setting 
(x + 3.2) equal to 4.176122604 and -4.176122604.

Subproblem 1

x + 3.2 = 4.176122604 Simplifying x + 3.2 = 4.176122604 Reorder the terms: 3.2 + x = 4.176122604 Solving 3.2 + x = 4.176122604 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.2' to each side of the equation. 3.2 + -3.2 + x = 4.176122604 + -3.2 Combine like terms: 3.2 + -3.2 = 0.0 0.0 + x = 4.176122604 + -3.2 x = 4.176122604 + -3.2 Combine like terms: 4.176122604 + -3.2 = 0.976122604 x = 0.976122604 Simplifying x = 0.976122604

Subproblem 2

x + 3.2 = -4.176122604 Simplifying x + 3.2 = -4.176122604 Reorder the terms: 3.2 + x = -4.176122604 Solving 3.2 + x = -4.176122604 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.2' to each side of the equation. 3.2 + -3.2 + x = -4.176122604 + -3.2 Combine like terms: 3.2 + -3.2 = 0.0 0.0 + x = -4.176122604 + -3.2 x = -4.176122604 + -3.2 Combine like terms: -4.176122604 + -3.2 = -7.376122604 x = -7.376122604 Simplifying x = -7.376122604

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.976122604, -7.376122604}

See similar equations:

| x-6(x+3)=-12 | | 8=8-10 | | (-5i)+(-6-2i)= | | -5-v/3=1 | | (2y-7)(2-y)=0 | | y=x/3-3/10 | | 11.9=0.7*[x+(x-12)0.6] | | 2=0.7*[x+(x-0.7)0.6] | | 3x(4+2)=6x-2 | | 2=0.7*[x+(x-0.7)0.66] | | 2=0.7*[x+(x-7)0.6] | | y=x/9-5/11 | | 2+10.4=x | | 2=0.7*[x+(x-0.07)0.6] | | (x^2+7x+1)(3x^2+4x-2)= | | y=00.15 | | y=x/9-5/7 | | -64/x=21.4 | | 6x+60=600 | | 2y-4=5y-2y+2 | | 8/5x^2-1 | | W(4w+6)+2w=2w^2+7w-3 | | 9x+2+5x-1=180 | | L=54+d | | y=9/4x-5 | | 8b-2b=96 | | 90+y+40+3y+10=180 | | 4/5÷13 | | 4/5÷1/3 | | 16x+84=22x | | 2cot^4(x)-cot^2(x)-16=0 | | 1.5x+8=1.25x |

Equations solver categories