2x(x-5)=x+3

Simple and best practice solution for 2x(x-5)=x+3 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 2x(x-5)=x+3 equation:


Simplifying
2x(x + -5) = x + 3

Reorder the terms:
2x(-5 + x) = x + 3
(-5 * 2x + x * 2x) = x + 3
(-10x + 2x2) = x + 3

Reorder the terms:
-10x + 2x2 = 3 + x

Solving
-10x + 2x2 = 3 + x

Solving for variable 'x'.

Reorder the terms:
-3 + -10x + -1x + 2x2 = 3 + x + -3 + -1x

Combine like terms: -10x + -1x = -11x
-3 + -11x + 2x2 = 3 + x + -3 + -1x

Reorder the terms:
-3 + -11x + 2x2 = 3 + -3 + x + -1x

Combine like terms: 3 + -3 = 0
-3 + -11x + 2x2 = 0 + x + -1x
-3 + -11x + 2x2 = x + -1x

Combine like terms: x + -1x = 0
-3 + -11x + 2x2 = 0

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

Divide each side by '2'.
-1.5 + -5.5x + x2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -5.5x + 1.5 + x2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -5.5x + x2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -5.5x + x2 = 0 + 1.5
-5.5x + x2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-5.5x + x2 = 1.5

The x term is -5.5x.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5x + 7.5625 + x2 = 1.5 + 7.5625

Reorder the terms:
7.5625 + -5.5x + x2 = 1.5 + 7.5625

Combine like terms: 1.5 + 7.5625 = 9.0625
7.5625 + -5.5x + x2 = 9.0625

Factor a perfect square on the left side:
(x + -2.75)(x + -2.75) = 9.0625

Calculate the square root of the right side: 3.010398645

Break this problem into two subproblems by setting 
(x + -2.75) equal to 3.010398645 and -3.010398645.

Subproblem 1

x + -2.75 = 3.010398645 Simplifying x + -2.75 = 3.010398645 Reorder the terms: -2.75 + x = 3.010398645 Solving -2.75 + x = 3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = 3.010398645 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = 3.010398645 + 2.75 x = 3.010398645 + 2.75 Combine like terms: 3.010398645 + 2.75 = 5.760398645 x = 5.760398645 Simplifying x = 5.760398645

Subproblem 2

x + -2.75 = -3.010398645 Simplifying x + -2.75 = -3.010398645 Reorder the terms: -2.75 + x = -3.010398645 Solving -2.75 + x = -3.010398645 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + x = -3.010398645 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + x = -3.010398645 + 2.75 x = -3.010398645 + 2.75 Combine like terms: -3.010398645 + 2.75 = -0.260398645 x = -0.260398645 Simplifying x = -0.260398645

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.760398645, -0.260398645}

See similar equations:

| (w/w-3)-(4w/4w-5)=(w-5/4w^2-17w+15) | | (x+3)2x-6=2600 | | 14x+27=17x+26 | | -4(3-2d)=9(2d-2) | | -3/x+11=-1 | | v-a=5 | | 6x-(2x-1)(2x+1)=2-(3+2x)2 | | (7/9-1)/(9/4) | | -3+11=-1 | | x^2-24=25 | | (1/4-1/2)/(1/5-1/3) | | 6-7x=6x-9x+2 | | 3(x-5)=3x+6 | | 3-6y=19y-14 | | (8/3-4)/(7/6+1) | | 34/6=12x+1/3 | | 8.58n+3.55=-2.91n+4.81 | | 6/5/1-7/4 | | 102=12x+1 | | 5/6/(1-7/4) | | 3(3x-5)+4x+2=-104 | | 2/3(D+6)-4D | | -19-3+25-41=-4-3m-8+4m | | (1/2-5/4)/(6/5-5/3) | | 96=80x-16x^2 | | 2(-2x-2)+5x+1=-6 | | x=4y+12 | | 4n^2-5n+5=0 | | 7(x-(2))-(4x)=10 | | 50/5(2) | | 3/4=w+2/3 | | 5z-3z=6 |

Equations solver categories