-2x^2+7x-22=0

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Solution for -2x^2+7x-22=0 equation:


Simplifying
-2x2 + 7x + -22 = 0

Reorder the terms:
-22 + 7x + -2x2 = 0

Solving
-22 + 7x + -2x2 = 0

Solving for variable 'x'.

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

Divide each side by '-2'.
11 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + -3.5x + -11 + x2 = 0 + -11

Reorder the terms:
11 + -11 + -3.5x + x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -3.5x + x2 = 0 + -11
-3.5x + x2 = 0 + -11

Combine like terms: 0 + -11 = -11
-3.5x + x2 = -11

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -11 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -11 + 3.0625

Combine like terms: -11 + 3.0625 = -7.9375
3.0625 + -3.5x + x2 = -7.9375

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = -7.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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