3x^2+9x+2x^2-8x+3=

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Solution for 3x^2+9x+2x^2-8x+3= equation:


Simplifying
3x2 + 9x + 2x2 + -8x + 3 = 0

Reorder the terms:
3 + 9x + -8x + 3x2 + 2x2 = 0

Combine like terms: 9x + -8x = 1x
3 + 1x + 3x2 + 2x2 = 0

Combine like terms: 3x2 + 2x2 = 5x2
3 + 1x + 5x2 = 0

Solving
3 + 1x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
0.6 + 0.2x + x2 = 0

Move the constant term to the right:

Add '-0.6' to each side of the equation.
0.6 + 0.2x + -0.6 + x2 = 0 + -0.6

Reorder the terms:
0.6 + -0.6 + 0.2x + x2 = 0 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + 0.2x + x2 = 0 + -0.6
0.2x + x2 = 0 + -0.6

Combine like terms: 0 + -0.6 = -0.6
0.2x + x2 = -0.6

The x term is 0.2x.  Take half its coefficient (0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
0.2x + 0.01 + x2 = -0.6 + 0.01

Reorder the terms:
0.01 + 0.2x + x2 = -0.6 + 0.01

Combine like terms: -0.6 + 0.01 = -0.59
0.01 + 0.2x + x2 = -0.59

Factor a perfect square on the left side:
(x + 0.1)(x + 0.1) = -0.59

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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