5x*(10x+5)-2x*(10x+2)=3x+1

Simple and best practice solution for 5x*(10x+5)-2x*(10x+2)=3x+1 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*(10x+5)-2x*(10x+2)=3x+1 equation:


Simplifying
5x(10x + 5) + -2x(10x + 2) = 3x + 1

Reorder the terms:
5x(5 + 10x) + -2x(10x + 2) = 3x + 1
(5 * 5x + 10x * 5x) + -2x(10x + 2) = 3x + 1
(25x + 50x2) + -2x(10x + 2) = 3x + 1

Reorder the terms:
25x + 50x2 + -2x(2 + 10x) = 3x + 1
25x + 50x2 + (2 * -2x + 10x * -2x) = 3x + 1
25x + 50x2 + (-4x + -20x2) = 3x + 1

Reorder the terms:
25x + -4x + 50x2 + -20x2 = 3x + 1

Combine like terms: 25x + -4x = 21x
21x + 50x2 + -20x2 = 3x + 1

Combine like terms: 50x2 + -20x2 = 30x2
21x + 30x2 = 3x + 1

Reorder the terms:
21x + 30x2 = 1 + 3x

Solving
21x + 30x2 = 1 + 3x

Solving for variable 'x'.

Reorder the terms:
-1 + 21x + -3x + 30x2 = 1 + 3x + -1 + -3x

Combine like terms: 21x + -3x = 18x
-1 + 18x + 30x2 = 1 + 3x + -1 + -3x

Reorder the terms:
-1 + 18x + 30x2 = 1 + -1 + 3x + -3x

Combine like terms: 1 + -1 = 0
-1 + 18x + 30x2 = 0 + 3x + -3x
-1 + 18x + 30x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-1 + 18x + 30x2 = 0

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

Divide each side by '30'.
-0.03333333333 + 0.6x + x2 = 0.0

Move the constant term to the right:

Add '0.03333333333' to each side of the equation.
-0.03333333333 + 0.6x + 0.03333333333 + x2 = 0.0 + 0.03333333333

Reorder the terms:
-0.03333333333 + 0.03333333333 + 0.6x + x2 = 0.0 + 0.03333333333

Combine like terms: -0.03333333333 + 0.03333333333 = 0.00000000000
0.00000000000 + 0.6x + x2 = 0.0 + 0.03333333333
0.6x + x2 = 0.0 + 0.03333333333

Combine like terms: 0.0 + 0.03333333333 = 0.03333333333
0.6x + x2 = 0.03333333333

The x term is 0.6x.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6x + 0.09 + x2 = 0.03333333333 + 0.09

Reorder the terms:
0.09 + 0.6x + x2 = 0.03333333333 + 0.09

Combine like terms: 0.03333333333 + 0.09 = 0.12333333333
0.09 + 0.6x + x2 = 0.12333333333

Factor a perfect square on the left side:
(x + 0.3)(x + 0.3) = 0.12333333333

Calculate the square root of the right side: 0.351188458

Break this problem into two subproblems by setting 
(x + 0.3) equal to 0.351188458 and -0.351188458.

Subproblem 1

x + 0.3 = 0.351188458 Simplifying x + 0.3 = 0.351188458 Reorder the terms: 0.3 + x = 0.351188458 Solving 0.3 + x = 0.351188458 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = 0.351188458 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = 0.351188458 + -0.3 x = 0.351188458 + -0.3 Combine like terms: 0.351188458 + -0.3 = 0.051188458 x = 0.051188458 Simplifying x = 0.051188458

Subproblem 2

x + 0.3 = -0.351188458 Simplifying x + 0.3 = -0.351188458 Reorder the terms: 0.3 + x = -0.351188458 Solving 0.3 + x = -0.351188458 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3' to each side of the equation. 0.3 + -0.3 + x = -0.351188458 + -0.3 Combine like terms: 0.3 + -0.3 = 0.0 0.0 + x = -0.351188458 + -0.3 x = -0.351188458 + -0.3 Combine like terms: -0.351188458 + -0.3 = -0.651188458 x = -0.651188458 Simplifying x = -0.651188458

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.051188458, -0.651188458}

See similar equations:

| 4x^4-12x^3+8x^2=0 | | 9-x^2+2x^5-7x= | | 3x+6=x+12+.5(x+12) | | 24=.79x+1.19 | | xxx-4=140 | | 15+4x-9=15 | | 9h+10=100 | | y=2x^3-9x | | 10m+6=96 | | 5x+90=5(x+18) | | 5x+90=5(x+19) | | x+5=741 | | 5m+10=45 | | E+3e+4e=48 | | 3x-3+20=4x+30 | | -57=3x | | -3x-5y=21 | | 5x+6=60 | | 5x+6=60 | | 4*10+5*2= | | -44-x=2x+13 | | 7x+2y=-12 | | 5y-17=83 | | -157+3x=109-11x | | y=8x^2-2x+3 | | 7m+3=52 | | 3y-12=12 | | 3v+4=13 | | 2(x+3)+14=3(x-4)+11 | | 6+2b=18 | | 5+w=185 | | x^2+5.5x+7.5625= |

Equations solver categories