2x^2+7x+1=8x^2+9

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Solution for 2x^2+7x+1=8x^2+9 equation:


Simplifying
2x2 + 7x + 1 = 8x2 + 9

Reorder the terms:
1 + 7x + 2x2 = 8x2 + 9

Reorder the terms:
1 + 7x + 2x2 = 9 + 8x2

Solving
1 + 7x + 2x2 = 9 + 8x2

Solving for variable 'x'.

Reorder the terms:
1 + -9 + 7x + 2x2 + -8x2 = 9 + 8x2 + -9 + -8x2

Combine like terms: 1 + -9 = -8
-8 + 7x + 2x2 + -8x2 = 9 + 8x2 + -9 + -8x2

Combine like terms: 2x2 + -8x2 = -6x2
-8 + 7x + -6x2 = 9 + 8x2 + -9 + -8x2

Reorder the terms:
-8 + 7x + -6x2 = 9 + -9 + 8x2 + -8x2

Combine like terms: 9 + -9 = 0
-8 + 7x + -6x2 = 0 + 8x2 + -8x2
-8 + 7x + -6x2 = 8x2 + -8x2

Combine like terms: 8x2 + -8x2 = 0
-8 + 7x + -6x2 = 0

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
1.333333333 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '-1.333333333' to each side of the equation.
1.333333333 + -1.166666667x + -1.333333333 + x2 = 0 + -1.333333333

Reorder the terms:
1.333333333 + -1.333333333 + -1.166666667x + x2 = 0 + -1.333333333

Combine like terms: 1.333333333 + -1.333333333 = 0.000000000
0.000000000 + -1.166666667x + x2 = 0 + -1.333333333
-1.166666667x + x2 = 0 + -1.333333333

Combine like terms: 0 + -1.333333333 = -1.333333333
-1.166666667x + x2 = -1.333333333

The x term is -1.166666667x.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667x + 0.3402777780 + x2 = -1.333333333 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = -1.333333333 + 0.3402777780

Combine like terms: -1.333333333 + 0.3402777780 = -0.993055555
0.3402777780 + -1.166666667x + x2 = -0.993055555

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = -0.993055555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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