0=-4x^2-89+16x

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Solution for 0=-4x^2-89+16x equation:


Simplifying
0 = -4x2 + -89 + 16x

Reorder the terms:
0 = -89 + 16x + -4x2

Solving
0 = -89 + 16x + -4x2

Solving for variable 'x'.

Combine like terms: 0 + 89 = 89
89 + -16x + 4x2 = -89 + 16x + -4x2 + 89 + -16x + 4x2

Reorder the terms:
89 + -16x + 4x2 = -89 + 89 + 16x + -16x + -4x2 + 4x2

Combine like terms: -89 + 89 = 0
89 + -16x + 4x2 = 0 + 16x + -16x + -4x2 + 4x2
89 + -16x + 4x2 = 16x + -16x + -4x2 + 4x2

Combine like terms: 16x + -16x = 0
89 + -16x + 4x2 = 0 + -4x2 + 4x2
89 + -16x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
89 + -16x + 4x2 = 0

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

Divide each side by '4'.
22.25 + -4x + x2 = 0

Move the constant term to the right:

Add '-22.25' to each side of the equation.
22.25 + -4x + -22.25 + x2 = 0 + -22.25

Reorder the terms:
22.25 + -22.25 + -4x + x2 = 0 + -22.25

Combine like terms: 22.25 + -22.25 = 0.00
0.00 + -4x + x2 = 0 + -22.25
-4x + x2 = 0 + -22.25

Combine like terms: 0 + -22.25 = -22.25
-4x + x2 = -22.25

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -22.25 + 4

Reorder the terms:
4 + -4x + x2 = -22.25 + 4

Combine like terms: -22.25 + 4 = -18.25
4 + -4x + x2 = -18.25

Factor a perfect square on the left side:
(x + -2)(x + -2) = -18.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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