16x^2+30x+105=0

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Solution for 16x^2+30x+105=0 equation:


Simplifying
16x2 + 30x + 105 = 0

Reorder the terms:
105 + 30x + 16x2 = 0

Solving
105 + 30x + 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'.
6.5625 + 1.875x + x2 = 0

Move the constant term to the right:

Add '-6.5625' to each side of the equation.
6.5625 + 1.875x + -6.5625 + x2 = 0 + -6.5625

Reorder the terms:
6.5625 + -6.5625 + 1.875x + x2 = 0 + -6.5625

Combine like terms: 6.5625 + -6.5625 = 0.0000
0.0000 + 1.875x + x2 = 0 + -6.5625
1.875x + x2 = 0 + -6.5625

Combine like terms: 0 + -6.5625 = -6.5625
1.875x + x2 = -6.5625

The x term is 1.875x.  Take half its coefficient (0.9375).
Square it (0.87890625) and add it to both sides.

Add '0.87890625' to each side of the equation.
1.875x + 0.87890625 + x2 = -6.5625 + 0.87890625

Reorder the terms:
0.87890625 + 1.875x + x2 = -6.5625 + 0.87890625

Combine like terms: -6.5625 + 0.87890625 = -5.68359375
0.87890625 + 1.875x + x2 = -5.68359375

Factor a perfect square on the left side:
(x + 0.9375)(x + 0.9375) = -5.68359375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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