2x^2+7.2=4.6x

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Solution for 2x^2+7.2=4.6x equation:


Simplifying
2x2 + 7.2 = 4.6x

Reorder the terms:
7.2 + 2x2 = 4.6x

Solving
7.2 + 2x2 = 4.6x

Solving for variable 'x'.

Reorder the terms:
7.2 + -4.6x + 2x2 = 4.6x + -4.6x

Combine like terms: 4.6x + -4.6x = 0.0
7.2 + -4.6x + 2x2 = 0.0

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

Divide each side by '2'.
3.6 + -2.3x + x2 = 0.0

Move the constant term to the right:

Add '-3.6' to each side of the equation.
3.6 + -2.3x + -3.6 + x2 = 0.0 + -3.6

Reorder the terms:
3.6 + -3.6 + -2.3x + x2 = 0.0 + -3.6

Combine like terms: 3.6 + -3.6 = 0.0
0.0 + -2.3x + x2 = 0.0 + -3.6
-2.3x + x2 = 0.0 + -3.6

Combine like terms: 0.0 + -3.6 = -3.6
-2.3x + x2 = -3.6

The x term is -2.3x.  Take half its coefficient (-1.15).
Square it (1.3225) and add it to both sides.

Add '1.3225' to each side of the equation.
-2.3x + 1.3225 + x2 = -3.6 + 1.3225

Reorder the terms:
1.3225 + -2.3x + x2 = -3.6 + 1.3225

Combine like terms: -3.6 + 1.3225 = -2.2775
1.3225 + -2.3x + x2 = -2.2775

Factor a perfect square on the left side:
(x + -1.15)(x + -1.15) = -2.2775

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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