5x^2+16x+30=0

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Solution for 5x^2+16x+30=0 equation:


Simplifying
5x2 + 16x + 30 = 0

Reorder the terms:
30 + 16x + 5x2 = 0

Solving
30 + 16x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
6 + 3.2x + x2 = 0

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + 3.2x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + 3.2x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 3.2x + x2 = 0 + -6
3.2x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
3.2x + x2 = -6

The x term is 3.2x.  Take half its coefficient (1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
3.2x + 2.56 + x2 = -6 + 2.56

Reorder the terms:
2.56 + 3.2x + x2 = -6 + 2.56

Combine like terms: -6 + 2.56 = -3.44
2.56 + 3.2x + x2 = -3.44

Factor a perfect square on the left side:
(x + 1.6)(x + 1.6) = -3.44

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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