16x^2+7x+4=0

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Solution for 16x^2+7x+4=0 equation:


Simplifying
16x2 + 7x + 4 = 0

Reorder the terms:
4 + 7x + 16x2 = 0

Solving
4 + 7x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
0.25 + 0.4375x + x2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 0.4375x + -0.25 + x2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 0.4375x + x2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.4375x + x2 = 0 + -0.25
0.4375x + x2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.4375x + x2 = -0.25

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 = -0.25 + 0.0478515625

Reorder the terms:
0.0478515625 + 0.4375x + x2 = -0.25 + 0.0478515625

Combine like terms: -0.25 + 0.0478515625 = -0.2021484375
0.0478515625 + 0.4375x + x2 = -0.2021484375

Factor a perfect square on the left side:
(x + 0.21875)(x + 0.21875) = -0.2021484375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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