3x^2-60x+400=0

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Solution for 3x^2-60x+400=0 equation:


Simplifying
3x2 + -60x + 400 = 0

Reorder the terms:
400 + -60x + 3x2 = 0

Solving
400 + -60x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
133.3333333 + -20x + x2 = 0

Move the constant term to the right:

Add '-133.3333333' to each side of the equation.
133.3333333 + -20x + -133.3333333 + x2 = 0 + -133.3333333

Reorder the terms:
133.3333333 + -133.3333333 + -20x + x2 = 0 + -133.3333333

Combine like terms: 133.3333333 + -133.3333333 = 0.0000000
0.0000000 + -20x + x2 = 0 + -133.3333333
-20x + x2 = 0 + -133.3333333

Combine like terms: 0 + -133.3333333 = -133.3333333
-20x + x2 = -133.3333333

The x term is -20x.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20x + 100 + x2 = -133.3333333 + 100

Reorder the terms:
100 + -20x + x2 = -133.3333333 + 100

Combine like terms: -133.3333333 + 100 = -33.3333333
100 + -20x + x2 = -33.3333333

Factor a perfect square on the left side:
(x + -10)(x + -10) = -33.3333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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