4x^2-40x+143=0

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Solution for 4x^2-40x+143=0 equation:


Simplifying
4x2 + -40x + 143 = 0

Reorder the terms:
143 + -40x + 4x2 = 0

Solving
143 + -40x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
35.75 + -10x + x2 = 0

Move the constant term to the right:

Add '-35.75' to each side of the equation.
35.75 + -10x + -35.75 + x2 = 0 + -35.75

Reorder the terms:
35.75 + -35.75 + -10x + x2 = 0 + -35.75

Combine like terms: 35.75 + -35.75 = 0.00
0.00 + -10x + x2 = 0 + -35.75
-10x + x2 = 0 + -35.75

Combine like terms: 0 + -35.75 = -35.75
-10x + x2 = -35.75

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 = -35.75 + 25

Reorder the terms:
25 + -10x + x2 = -35.75 + 25

Combine like terms: -35.75 + 25 = -10.75
25 + -10x + x2 = -10.75

Factor a perfect square on the left side:
(x + -5)(x + -5) = -10.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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