-12x^2+25x=84

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Solution for -12x^2+25x=84 equation:


Simplifying
-12x2 + 25x = 84

Reorder the terms:
25x + -12x2 = 84

Solving
25x + -12x2 = 84

Solving for variable 'x'.

Reorder the terms:
-84 + 25x + -12x2 = 84 + -84

Combine like terms: 84 + -84 = 0
-84 + 25x + -12x2 = 0

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
7 + -2.083333333x + x2 = 0

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + -2.083333333x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + -2.083333333x + x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -2.083333333x + x2 = 0 + -7
-2.083333333x + x2 = 0 + -7

Combine like terms: 0 + -7 = -7
-2.083333333x + x2 = -7

The x term is -2.083333333x.  Take half its coefficient (-1.041666667).
Square it (1.085069445) and add it to both sides.

Add '1.085069445' to each side of the equation.
-2.083333333x + 1.085069445 + x2 = -7 + 1.085069445

Reorder the terms:
1.085069445 + -2.083333333x + x2 = -7 + 1.085069445

Combine like terms: -7 + 1.085069445 = -5.914930555
1.085069445 + -2.083333333x + x2 = -5.914930555

Factor a perfect square on the left side:
(x + -1.041666667)(x + -1.041666667) = -5.914930555

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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