5x^2=2x+6

Simple and best practice solution for 5x^2=2x+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 5x^2=2x+6 equation:


Simplifying
5x2 = 2x + 6

Reorder the terms:
5x2 = 6 + 2x

Solving
5x2 = 6 + 2x

Solving for variable 'x'.

Reorder the terms:
-6 + -2x + 5x2 = 6 + 2x + -6 + -2x

Reorder the terms:
-6 + -2x + 5x2 = 6 + -6 + 2x + -2x

Combine like terms: 6 + -6 = 0
-6 + -2x + 5x2 = 0 + 2x + -2x
-6 + -2x + 5x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
-6 + -2x + 5x2 = 0

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

Divide each side by '5'.
-1.2 + -0.4x + x2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + -0.4x + 1.2 + x2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + -0.4x + x2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + -0.4x + x2 = 0 + 1.2
-0.4x + x2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
-0.4x + x2 = 1.2

The x term is -0.4x.  Take half its coefficient (-0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
-0.4x + 0.04 + x2 = 1.2 + 0.04

Reorder the terms:
0.04 + -0.4x + x2 = 1.2 + 0.04

Combine like terms: 1.2 + 0.04 = 1.24
0.04 + -0.4x + x2 = 1.24

Factor a perfect square on the left side:
(x + -0.2)(x + -0.2) = 1.24

Calculate the square root of the right side: 1.113552873

Break this problem into two subproblems by setting 
(x + -0.2) equal to 1.113552873 and -1.113552873.

Subproblem 1

x + -0.2 = 1.113552873 Simplifying x + -0.2 = 1.113552873 Reorder the terms: -0.2 + x = 1.113552873 Solving -0.2 + x = 1.113552873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + x = 1.113552873 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + x = 1.113552873 + 0.2 x = 1.113552873 + 0.2 Combine like terms: 1.113552873 + 0.2 = 1.313552873 x = 1.313552873 Simplifying x = 1.313552873

Subproblem 2

x + -0.2 = -1.113552873 Simplifying x + -0.2 = -1.113552873 Reorder the terms: -0.2 + x = -1.113552873 Solving -0.2 + x = -1.113552873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + x = -1.113552873 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + x = -1.113552873 + 0.2 x = -1.113552873 + 0.2 Combine like terms: -1.113552873 + 0.2 = -0.913552873 x = -0.913552873 Simplifying x = -0.913552873

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.313552873, -0.913552873}

See similar equations:

| x-(5x+1)=-3x+(-x+2) | | -x^2+x-20= | | -x^2-7x-18= | | (5-3x)-(-4x+6)=5x+17 | | 2x^2+104=0 | | -x^2-14x+32= | | 5x^2+35x=0 | | 6(x-1)+16(2x+3)=3(2x-7) | | -x^2-11x+30= | | 7x(7x-6)=-18 | | 8(3x-3)=2(12x+7) | | -x^2-9x+18= | | 3x^2-4=-16 | | 8+18n-2=5n+118-3n | | 2x^2+x-8+x=0 | | 3(x+2)+5(x+6)= | | -x^2-20x+51= | | -x^2-8x+7= | | -x^2+12x-32= | | n^2-3n=-5 | | 3m+8m=66 | | -x^2+7x-10= | | 30x-(6-x)+(4-5x)=-(5x+6) | | 9*-17= | | 7N-16=17+6N | | -x^2+19x-34= | | -10.7x=85.6 | | c^2+13c+42=0 | | 3M-10=2+2M | | 3v^2+28v+60=0 | | 30x+40y=280 | | -x^2+11x-30= |

Equations solver categories