x^2-40x+740=0

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Solution for x^2-40x+740=0 equation:


Simplifying
x2 + -40x + 740 = 0

Reorder the terms:
740 + -40x + x2 = 0

Solving
740 + -40x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-740' to each side of the equation.
740 + -40x + -740 + x2 = 0 + -740

Reorder the terms:
740 + -740 + -40x + x2 = 0 + -740

Combine like terms: 740 + -740 = 0
0 + -40x + x2 = 0 + -740
-40x + x2 = 0 + -740

Combine like terms: 0 + -740 = -740
-40x + x2 = -740

The x term is -40x.  Take half its coefficient (-20).
Square it (400) and add it to both sides.

Add '400' to each side of the equation.
-40x + 400 + x2 = -740 + 400

Reorder the terms:
400 + -40x + x2 = -740 + 400

Combine like terms: -740 + 400 = -340
400 + -40x + x2 = -340

Factor a perfect square on the left side:
(x + -20)(x + -20) = -340

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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