5x-3x^2=54

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Solution for 5x-3x^2=54 equation:


Simplifying
5x + -3x2 = 54

Solving
5x + -3x2 = 54

Solving for variable 'x'.

Reorder the terms:
-54 + 5x + -3x2 = 54 + -54

Combine like terms: 54 + -54 = 0
-54 + 5x + -3x2 = 0

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

Divide each side by '-3'.
18 + -1.666666667x + x2 = 0

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -1.666666667x + -18 + x2 = 0 + -18

Reorder the terms:
18 + -18 + -1.666666667x + x2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -1.666666667x + x2 = 0 + -18
-1.666666667x + x2 = 0 + -18

Combine like terms: 0 + -18 = -18
-1.666666667x + x2 = -18

The x term is -1.666666667x.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667x + 0.6944444447 + x2 = -18 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667x + x2 = -18 + 0.6944444447

Combine like terms: -18 + 0.6944444447 = -17.3055555553
0.6944444447 + -1.666666667x + x2 = -17.3055555553

Factor a perfect square on the left side:
(x + -0.8333333335)(x + -0.8333333335) = -17.3055555553

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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