4x^2-11x+30=16

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Solution for 4x^2-11x+30=16 equation:


Simplifying
4x2 + -11x + 30 = 16

Reorder the terms:
30 + -11x + 4x2 = 16

Solving
30 + -11x + 4x2 = 16

Solving for variable 'x'.

Reorder the terms:
30 + -16 + -11x + 4x2 = 16 + -16

Combine like terms: 30 + -16 = 14
14 + -11x + 4x2 = 16 + -16

Combine like terms: 16 + -16 = 0
14 + -11x + 4x2 = 0

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

Divide each side by '4'.
3.5 + -2.75x + x2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -2.75x + -3.5 + x2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -2.75x + x2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -2.75x + x2 = 0 + -3.5
-2.75x + x2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-2.75x + x2 = -3.5

The x term is -2.75x.  Take half its coefficient (-1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
-2.75x + 1.890625 + x2 = -3.5 + 1.890625

Reorder the terms:
1.890625 + -2.75x + x2 = -3.5 + 1.890625

Combine like terms: -3.5 + 1.890625 = -1.609375
1.890625 + -2.75x + x2 = -1.609375

Factor a perfect square on the left side:
(x + -1.375)(x + -1.375) = -1.609375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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