2x^2-20x=-75

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Solution for 2x^2-20x=-75 equation:


Simplifying
2x2 + -20x = -75

Reorder the terms:
-20x + 2x2 = -75

Solving
-20x + 2x2 = -75

Solving for variable 'x'.

Reorder the terms:
75 + -20x + 2x2 = -75 + 75

Combine like terms: -75 + 75 = 0
75 + -20x + 2x2 = 0

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

Divide each side by '2'.
37.5 + -10x + x2 = 0

Move the constant term to the right:

Add '-37.5' to each side of the equation.
37.5 + -10x + -37.5 + x2 = 0 + -37.5

Reorder the terms:
37.5 + -37.5 + -10x + x2 = 0 + -37.5

Combine like terms: 37.5 + -37.5 = 0.0
0.0 + -10x + x2 = 0 + -37.5
-10x + x2 = 0 + -37.5

Combine like terms: 0 + -37.5 = -37.5
-10x + x2 = -37.5

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -37.5 + 25

Reorder the terms:
25 + -10x + x2 = -37.5 + 25

Combine like terms: -37.5 + 25 = -12.5
25 + -10x + x2 = -12.5

Factor a perfect square on the left side:
(x + -5)(x + -5) = -12.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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