75x^2-60x=-2

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Solution for 75x^2-60x=-2 equation:


Simplifying
75x2 + -60x = -2

Reorder the terms:
-60x + 75x2 = -2

Solving
-60x + 75x2 = -2

Solving for variable 'x'.

Reorder the terms:
2 + -60x + 75x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + -60x + 75x2 = 0

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

Divide each side by '75'.
0.02666666667 + -0.8x + x2 = 0

Move the constant term to the right:

Add '-0.02666666667' to each side of the equation.
0.02666666667 + -0.8x + -0.02666666667 + x2 = 0 + -0.02666666667

Reorder the terms:
0.02666666667 + -0.02666666667 + -0.8x + x2 = 0 + -0.02666666667

Combine like terms: 0.02666666667 + -0.02666666667 = 0.00000000000
0.00000000000 + -0.8x + x2 = 0 + -0.02666666667
-0.8x + x2 = 0 + -0.02666666667

Combine like terms: 0 + -0.02666666667 = -0.02666666667
-0.8x + x2 = -0.02666666667

The x term is -0.8x.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8x + 0.16 + x2 = -0.02666666667 + 0.16

Reorder the terms:
0.16 + -0.8x + x2 = -0.02666666667 + 0.16

Combine like terms: -0.02666666667 + 0.16 = 0.13333333333
0.16 + -0.8x + x2 = 0.13333333333

Factor a perfect square on the left side:
(x + -0.4)(x + -0.4) = 0.13333333333

Calculate the square root of the right side: 0.365148372

Break this problem into two subproblems by setting 
(x + -0.4) equal to 0.365148372 and -0.365148372.

Subproblem 1

x + -0.4 = 0.365148372 Simplifying x + -0.4 = 0.365148372 Reorder the terms: -0.4 + x = 0.365148372 Solving -0.4 + x = 0.365148372 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = 0.365148372 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = 0.365148372 + 0.4 x = 0.365148372 + 0.4 Combine like terms: 0.365148372 + 0.4 = 0.765148372 x = 0.765148372 Simplifying x = 0.765148372

Subproblem 2

x + -0.4 = -0.365148372 Simplifying x + -0.4 = -0.365148372 Reorder the terms: -0.4 + x = -0.365148372 Solving -0.4 + x = -0.365148372 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = -0.365148372 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = -0.365148372 + 0.4 x = -0.365148372 + 0.4 Combine like terms: -0.365148372 + 0.4 = 0.034851628 x = 0.034851628 Simplifying x = 0.034851628

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.765148372, 0.034851628}

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