19=-3h(h+5)

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Solution for 19=-3h(h+5) equation:


Simplifying
19 = -3h(h + 5)

Reorder the terms:
19 = -3h(5 + h)
19 = (5 * -3h + h * -3h)
19 = (-15h + -3h2)

Solving
19 = -15h + -3h2

Solving for variable 'h'.

Reorder the terms:
19 + 15h + 3h2 = -15h + 15h + -3h2 + 3h2

Combine like terms: -15h + 15h = 0
19 + 15h + 3h2 = 0 + -3h2 + 3h2
19 + 15h + 3h2 = -3h2 + 3h2

Combine like terms: -3h2 + 3h2 = 0
19 + 15h + 3h2 = 0

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

Divide each side by '3'.
6.333333333 + 5h + h2 = 0

Move the constant term to the right:

Add '-6.333333333' to each side of the equation.
6.333333333 + 5h + -6.333333333 + h2 = 0 + -6.333333333

Reorder the terms:
6.333333333 + -6.333333333 + 5h + h2 = 0 + -6.333333333

Combine like terms: 6.333333333 + -6.333333333 = 0.000000000
0.000000000 + 5h + h2 = 0 + -6.333333333
5h + h2 = 0 + -6.333333333

Combine like terms: 0 + -6.333333333 = -6.333333333
5h + h2 = -6.333333333

The h term is 5h.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5h + 6.25 + h2 = -6.333333333 + 6.25

Reorder the terms:
6.25 + 5h + h2 = -6.333333333 + 6.25

Combine like terms: -6.333333333 + 6.25 = -0.083333333
6.25 + 5h + h2 = -0.083333333

Factor a perfect square on the left side:
(h + 2.5)(h + 2.5) = -0.083333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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