0.75x(x+2)=-1

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Solution for 0.75x(x+2)=-1 equation:


Simplifying
0.75x(x + 2) = -1

Reorder the terms:
0.75x(2 + x) = -1
(2 * 0.75x + x * 0.75x) = -1
(1.5x + 0.75x2) = -1

Solving
1.5x + 0.75x2 = -1

Solving for variable 'x'.

Reorder the terms:
1 + 1.5x + 0.75x2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + 1.5x + 0.75x2 = 0

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

Divide each side by '0.75'.
1.333333333 + 2x + x2 = 0

Move the constant term to the right:

Add '-1.333333333' to each side of the equation.
1.333333333 + 2x + -1.333333333 + x2 = 0 + -1.333333333

Reorder the terms:
1.333333333 + -1.333333333 + 2x + x2 = 0 + -1.333333333

Combine like terms: 1.333333333 + -1.333333333 = 0.000000000
0.000000000 + 2x + x2 = 0 + -1.333333333
2x + x2 = 0 + -1.333333333

Combine like terms: 0 + -1.333333333 = -1.333333333
2x + x2 = -1.333333333

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = -1.333333333 + 1

Reorder the terms:
1 + 2x + x2 = -1.333333333 + 1

Combine like terms: -1.333333333 + 1 = -0.333333333
1 + 2x + x2 = -0.333333333

Factor a perfect square on the left side:
(x + 1)(x + 1) = -0.333333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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