30x+(x^2+40x)+10x+35=180

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Solution for 30x+(x^2+40x)+10x+35=180 equation:


Simplifying
30x + (x2 + 40x) + 10x + 35 = 180

Reorder the terms:
30x + (40x + x2) + 10x + 35 = 180

Remove parenthesis around (40x + x2)
30x + 40x + x2 + 10x + 35 = 180

Reorder the terms:
35 + 30x + 40x + 10x + x2 = 180

Combine like terms: 30x + 40x = 70x
35 + 70x + 10x + x2 = 180

Combine like terms: 70x + 10x = 80x
35 + 80x + x2 = 180

Solving
35 + 80x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
35 + -180 + 80x + x2 = 180 + -180

Combine like terms: 35 + -180 = -145
-145 + 80x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-145 + 80x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '145' to each side of the equation.
-145 + 80x + 145 + x2 = 0 + 145

Reorder the terms:
-145 + 145 + 80x + x2 = 0 + 145

Combine like terms: -145 + 145 = 0
0 + 80x + x2 = 0 + 145
80x + x2 = 0 + 145

Combine like terms: 0 + 145 = 145
80x + x2 = 145

The x term is 80x.  Take half its coefficient (40).
Square it (1600) and add it to both sides.

Add '1600' to each side of the equation.
80x + 1600 + x2 = 145 + 1600

Reorder the terms:
1600 + 80x + x2 = 145 + 1600

Combine like terms: 145 + 1600 = 1745
1600 + 80x + x2 = 1745

Factor a perfect square on the left side:
(x + 40)(x + 40) = 1745

Calculate the square root of the right side: 41.773197148

Break this problem into two subproblems by setting 
(x + 40) equal to 41.773197148 and -41.773197148.

Subproblem 1

x + 40 = 41.773197148 Simplifying x + 40 = 41.773197148 Reorder the terms: 40 + x = 41.773197148 Solving 40 + x = 41.773197148 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + x = 41.773197148 + -40 Combine like terms: 40 + -40 = 0 0 + x = 41.773197148 + -40 x = 41.773197148 + -40 Combine like terms: 41.773197148 + -40 = 1.773197148 x = 1.773197148 Simplifying x = 1.773197148

Subproblem 2

x + 40 = -41.773197148 Simplifying x + 40 = -41.773197148 Reorder the terms: 40 + x = -41.773197148 Solving 40 + x = -41.773197148 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + x = -41.773197148 + -40 Combine like terms: 40 + -40 = 0 0 + x = -41.773197148 + -40 x = -41.773197148 + -40 Combine like terms: -41.773197148 + -40 = -81.773197148 x = -81.773197148 Simplifying x = -81.773197148

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.773197148, -81.773197148}

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