-16x^2+7x=56

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Solution for -16x^2+7x=56 equation:


Simplifying
-16x2 + 7x = 56

Reorder the terms:
7x + -16x2 = 56

Solving
7x + -16x2 = 56

Solving for variable 'x'.

Reorder the terms:
-56 + 7x + -16x2 = 56 + -56

Combine like terms: 56 + -56 = 0
-56 + 7x + -16x2 = 0

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

Divide each side by '-16'.
3.5 + -0.4375x + x2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -0.4375x + -3.5 + x2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -0.4375x + x2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -0.4375x + x2 = 0 + -3.5
-0.4375x + x2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-0.4375x + x2 = -3.5

The x term is -0.4375x.  Take half its coefficient (-0.21875).
Square it (0.0478515625) and add it to both sides.

Add '0.0478515625' to each side of the equation.
-0.4375x + 0.0478515625 + x2 = -3.5 + 0.0478515625

Reorder the terms:
0.0478515625 + -0.4375x + x2 = -3.5 + 0.0478515625

Combine like terms: -3.5 + 0.0478515625 = -3.4521484375
0.0478515625 + -0.4375x + x2 = -3.4521484375

Factor a perfect square on the left side:
(x + -0.21875)(x + -0.21875) = -3.4521484375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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