-16x^2+11x=28

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Solution for -16x^2+11x=28 equation:


Simplifying
-16x2 + 11x = 28

Reorder the terms:
11x + -16x2 = 28

Solving
11x + -16x2 = 28

Solving for variable 'x'.

Reorder the terms:
-28 + 11x + -16x2 = 28 + -28

Combine like terms: 28 + -28 = 0
-28 + 11x + -16x2 = 0

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
1.75 + -0.6875x + x2 = 0

Move the constant term to the right:

Add '-1.75' to each side of the equation.
1.75 + -0.6875x + -1.75 + x2 = 0 + -1.75

Reorder the terms:
1.75 + -1.75 + -0.6875x + x2 = 0 + -1.75

Combine like terms: 1.75 + -1.75 = 0.00
0.00 + -0.6875x + x2 = 0 + -1.75
-0.6875x + x2 = 0 + -1.75

Combine like terms: 0 + -1.75 = -1.75
-0.6875x + x2 = -1.75

The x term is -0.6875x.  Take half its coefficient (-0.34375).
Square it (0.1181640625) and add it to both sides.

Add '0.1181640625' to each side of the equation.
-0.6875x + 0.1181640625 + x2 = -1.75 + 0.1181640625

Reorder the terms:
0.1181640625 + -0.6875x + x2 = -1.75 + 0.1181640625

Combine like terms: -1.75 + 0.1181640625 = -1.6318359375
0.1181640625 + -0.6875x + x2 = -1.6318359375

Factor a perfect square on the left side:
(x + -0.34375)(x + -0.34375) = -1.6318359375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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