5x^2-20x+100=76

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Solution for 5x^2-20x+100=76 equation:


Simplifying
5x2 + -20x + 100 = 76

Reorder the terms:
100 + -20x + 5x2 = 76

Solving
100 + -20x + 5x2 = 76

Solving for variable 'x'.

Reorder the terms:
100 + -76 + -20x + 5x2 = 76 + -76

Combine like terms: 100 + -76 = 24
24 + -20x + 5x2 = 76 + -76

Combine like terms: 76 + -76 = 0
24 + -20x + 5x2 = 0

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

Divide each side by '5'.
4.8 + -4x + x2 = 0

Move the constant term to the right:

Add '-4.8' to each side of the equation.
4.8 + -4x + -4.8 + x2 = 0 + -4.8

Reorder the terms:
4.8 + -4.8 + -4x + x2 = 0 + -4.8

Combine like terms: 4.8 + -4.8 = 0.0
0.0 + -4x + x2 = 0 + -4.8
-4x + x2 = 0 + -4.8

Combine like terms: 0 + -4.8 = -4.8
-4x + x2 = -4.8

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -4.8 + 4

Reorder the terms:
4 + -4x + x2 = -4.8 + 4

Combine like terms: -4.8 + 4 = -0.8
4 + -4x + x2 = -0.8

Factor a perfect square on the left side:
(x + -2)(x + -2) = -0.8

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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