26x+5x^2=492

Simple and best practice solution for 26x+5x^2=492 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 26x+5x^2=492 equation:


Simplifying
26x + 5x2 = 492

Solving
26x + 5x2 = 492

Solving for variable 'x'.

Reorder the terms:
-492 + 26x + 5x2 = 492 + -492

Combine like terms: 492 + -492 = 0
-492 + 26x + 5x2 = 0

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

Divide each side by '5'.
-98.4 + 5.2x + x2 = 0

Move the constant term to the right:

Add '98.4' to each side of the equation.
-98.4 + 5.2x + 98.4 + x2 = 0 + 98.4

Reorder the terms:
-98.4 + 98.4 + 5.2x + x2 = 0 + 98.4

Combine like terms: -98.4 + 98.4 = 0.0
0.0 + 5.2x + x2 = 0 + 98.4
5.2x + x2 = 0 + 98.4

Combine like terms: 0 + 98.4 = 98.4
5.2x + x2 = 98.4

The x term is 5.2x.  Take half its coefficient (2.6).
Square it (6.76) and add it to both sides.

Add '6.76' to each side of the equation.
5.2x + 6.76 + x2 = 98.4 + 6.76

Reorder the terms:
6.76 + 5.2x + x2 = 98.4 + 6.76

Combine like terms: 98.4 + 6.76 = 105.16
6.76 + 5.2x + x2 = 105.16

Factor a perfect square on the left side:
(x + 2.6)(x + 2.6) = 105.16

Calculate the square root of the right side: 10.254754995

Break this problem into two subproblems by setting 
(x + 2.6) equal to 10.254754995 and -10.254754995.

Subproblem 1

x + 2.6 = 10.254754995 Simplifying x + 2.6 = 10.254754995 Reorder the terms: 2.6 + x = 10.254754995 Solving 2.6 + x = 10.254754995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.6' to each side of the equation. 2.6 + -2.6 + x = 10.254754995 + -2.6 Combine like terms: 2.6 + -2.6 = 0.0 0.0 + x = 10.254754995 + -2.6 x = 10.254754995 + -2.6 Combine like terms: 10.254754995 + -2.6 = 7.654754995 x = 7.654754995 Simplifying x = 7.654754995

Subproblem 2

x + 2.6 = -10.254754995 Simplifying x + 2.6 = -10.254754995 Reorder the terms: 2.6 + x = -10.254754995 Solving 2.6 + x = -10.254754995 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.6' to each side of the equation. 2.6 + -2.6 + x = -10.254754995 + -2.6 Combine like terms: 2.6 + -2.6 = 0.0 0.0 + x = -10.254754995 + -2.6 x = -10.254754995 + -2.6 Combine like terms: -10.254754995 + -2.6 = -12.854754995 x = -12.854754995 Simplifying x = -12.854754995

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.654754995, -12.854754995}

See similar equations:

| 2z-6=8 | | 0.36t=2.52+0.08t | | 4(9x-4)+6=24 | | -7r+13=-7 | | 4-4x=x-11 | | 12=8+d/6 | | 3x/5-3/2=4x/2 | | 4-x=(x-4) | | 6-(3/2x)=-6 | | (-3)(xxx+7x-14)= | | 42=6 | | 6-4x=8x+2 | | X+7^1/2=-x^2+5 | | 6-3/2x=6 | | [x+4]=11 | | 9x+q=3b-5x | | 60=4+(x-5) | | 5z=-40 | | 4.9q-1.6-5.4q=1.5q-1.8 | | 5=a/4+4 | | (x+4)=x+18 | | (-4)(3x-6)= | | t^2+12t+35=0 | | x^2+4x-2=o | | 8(y-2)=5y-25 | | 52+11t=376t-94 | | 3x+5+5=-2x | | 1.75(14x-3)= | | ((6*6)-2)/6+1 | | .75x-.83=.67x | | 5x/4-3x/8=7/12 | | 5x-15=5(x-2)-5 |

Equations solver categories