20+3x+2x^2=0

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Solution for 20+3x+2x^2=0 equation:


Simplifying
20 + 3x + 2x2 = 0

Solving
20 + 3x + 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'.
10 + 1.5x + x2 = 0

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + 1.5x + -10 + x2 = 0 + -10

Reorder the terms:
10 + -10 + 1.5x + x2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 1.5x + x2 = 0 + -10
1.5x + x2 = 0 + -10

Combine like terms: 0 + -10 = -10
1.5x + x2 = -10

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = -10 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = -10 + 0.5625

Combine like terms: -10 + 0.5625 = -9.4375
0.5625 + 1.5x + x2 = -9.4375

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = -9.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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