7x^2+9x=3x-2

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Solution for 7x^2+9x=3x-2 equation:


Simplifying
7x2 + 9x = 3x + -2

Reorder the terms:
9x + 7x2 = 3x + -2

Reorder the terms:
9x + 7x2 = -2 + 3x

Solving
9x + 7x2 = -2 + 3x

Solving for variable 'x'.

Reorder the terms:
2 + 9x + -3x + 7x2 = -2 + 3x + 2 + -3x

Combine like terms: 9x + -3x = 6x
2 + 6x + 7x2 = -2 + 3x + 2 + -3x

Reorder the terms:
2 + 6x + 7x2 = -2 + 2 + 3x + -3x

Combine like terms: -2 + 2 = 0
2 + 6x + 7x2 = 0 + 3x + -3x
2 + 6x + 7x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
2 + 6x + 7x2 = 0

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

Divide each side by '7'.
0.2857142857 + 0.8571428571x + x2 = 0

Move the constant term to the right:

Add '-0.2857142857' to each side of the equation.
0.2857142857 + 0.8571428571x + -0.2857142857 + x2 = 0 + -0.2857142857

Reorder the terms:
0.2857142857 + -0.2857142857 + 0.8571428571x + x2 = 0 + -0.2857142857

Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000
0.0000000000 + 0.8571428571x + x2 = 0 + -0.2857142857
0.8571428571x + x2 = 0 + -0.2857142857

Combine like terms: 0 + -0.2857142857 = -0.2857142857
0.8571428571x + x2 = -0.2857142857

The x term is 0.8571428571x.  Take half its coefficient (0.4285714286).
Square it (0.1836734694) and add it to both sides.

Add '0.1836734694' to each side of the equation.
0.8571428571x + 0.1836734694 + x2 = -0.2857142857 + 0.1836734694

Reorder the terms:
0.1836734694 + 0.8571428571x + x2 = -0.2857142857 + 0.1836734694

Combine like terms: -0.2857142857 + 0.1836734694 = -0.1020408163
0.1836734694 + 0.8571428571x + x2 = -0.1020408163

Factor a perfect square on the left side:
(x + 0.4285714286)(x + 0.4285714286) = -0.1020408163

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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