-2x^2-.7x-3=0

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Solution for -2x^2-.7x-3=0 equation:


Simplifying
-2x2 + -0.7x + -3 = 0

Reorder the terms:
-3 + -0.7x + -2x2 = 0

Solving
-3 + -0.7x + -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'.
1.5 + 0.35x + x2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + 0.35x + -1.5 + x2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + 0.35x + x2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 0.35x + x2 = 0 + -1.5
0.35x + x2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
0.35x + x2 = -1.5

The x term is 0.35x.  Take half its coefficient (0.175).
Square it (0.030625) and add it to both sides.

Add '0.030625' to each side of the equation.
0.35x + 0.030625 + x2 = -1.5 + 0.030625

Reorder the terms:
0.030625 + 0.35x + x2 = -1.5 + 0.030625

Combine like terms: -1.5 + 0.030625 = -1.469375
0.030625 + 0.35x + x2 = -1.469375

Factor a perfect square on the left side:
(x + 0.175)(x + 0.175) = -1.469375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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