(4x+3)+(5x^2-2x)-(2x^2-9)=

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Solution for (4x+3)+(5x^2-2x)-(2x^2-9)= equation:


Simplifying
(4x + 3) + (5x2 + -2x) + -1(2x2 + -9) = 0

Reorder the terms:
(3 + 4x) + (5x2 + -2x) + -1(2x2 + -9) = 0

Remove parenthesis around (3 + 4x)
3 + 4x + (5x2 + -2x) + -1(2x2 + -9) = 0

Reorder the terms:
3 + 4x + (-2x + 5x2) + -1(2x2 + -9) = 0

Remove parenthesis around (-2x + 5x2)
3 + 4x + -2x + 5x2 + -1(2x2 + -9) = 0

Reorder the terms:
3 + 4x + -2x + 5x2 + -1(-9 + 2x2) = 0
3 + 4x + -2x + 5x2 + (-9 * -1 + 2x2 * -1) = 0
3 + 4x + -2x + 5x2 + (9 + -2x2) = 0

Reorder the terms:
3 + 9 + 4x + -2x + 5x2 + -2x2 = 0

Combine like terms: 3 + 9 = 12
12 + 4x + -2x + 5x2 + -2x2 = 0

Combine like terms: 4x + -2x = 2x
12 + 2x + 5x2 + -2x2 = 0

Combine like terms: 5x2 + -2x2 = 3x2
12 + 2x + 3x2 = 0

Solving
12 + 2x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
4 + 0.6666666667x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 0.6666666667x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + 0.6666666667x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 0.6666666667x + x2 = 0 + -4
0.6666666667x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
0.6666666667x + x2 = -4

The x term is 0.6666666667x.  Take half its coefficient (0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
0.6666666667x + 0.1111111112 + x2 = -4 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667x + x2 = -4 + 0.1111111112

Combine like terms: -4 + 0.1111111112 = -3.8888888888
0.1111111112 + 0.6666666667x + x2 = -3.8888888888

Factor a perfect square on the left side:
(x + 0.3333333334)(x + 0.3333333334) = -3.8888888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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