x(x+60)=142

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Solution for x(x+60)=142 equation:


Simplifying
x(x + 60) = 142

Reorder the terms:
x(60 + x) = 142
(60 * x + x * x) = 142
(60x + x2) = 142

Solving
60x + x2 = 142

Solving for variable 'x'.

Reorder the terms:
-142 + 60x + x2 = 142 + -142

Combine like terms: 142 + -142 = 0
-142 + 60x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '142' to each side of the equation.
-142 + 60x + 142 + x2 = 0 + 142

Reorder the terms:
-142 + 142 + 60x + x2 = 0 + 142

Combine like terms: -142 + 142 = 0
0 + 60x + x2 = 0 + 142
60x + x2 = 0 + 142

Combine like terms: 0 + 142 = 142
60x + x2 = 142

The x term is 60x.  Take half its coefficient (30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
60x + 900 + x2 = 142 + 900

Reorder the terms:
900 + 60x + x2 = 142 + 900

Combine like terms: 142 + 900 = 1042
900 + 60x + x2 = 1042

Factor a perfect square on the left side:
(x + 30)(x + 30) = 1042

Calculate the square root of the right side: 32.280024783

Break this problem into two subproblems by setting 
(x + 30) equal to 32.280024783 and -32.280024783.

Subproblem 1

x + 30 = 32.280024783 Simplifying x + 30 = 32.280024783 Reorder the terms: 30 + x = 32.280024783 Solving 30 + x = 32.280024783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = 32.280024783 + -30 Combine like terms: 30 + -30 = 0 0 + x = 32.280024783 + -30 x = 32.280024783 + -30 Combine like terms: 32.280024783 + -30 = 2.280024783 x = 2.280024783 Simplifying x = 2.280024783

Subproblem 2

x + 30 = -32.280024783 Simplifying x + 30 = -32.280024783 Reorder the terms: 30 + x = -32.280024783 Solving 30 + x = -32.280024783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + x = -32.280024783 + -30 Combine like terms: 30 + -30 = 0 0 + x = -32.280024783 + -30 x = -32.280024783 + -30 Combine like terms: -32.280024783 + -30 = -62.280024783 x = -62.280024783 Simplifying x = -62.280024783

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.280024783, -62.280024783}

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