-1-(-5x)-2x+2x(2x)+7=

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Solution for -1-(-5x)-2x+2x(2x)+7= equation: 


Simplifying
-1 + -1(-5x) + -2x + 2x(2x) + 7 = 0

Remove parenthesis around (-5x)
-1 + -1 * -5x + -2x + 2x(2x) + 7 = 0

Multiply -1 * -5
-1 + 5x + -2x + 2x(2x) + 7 = 0

Remove parenthesis around (2x)
-1 + 5x + -2x + 2x * 2x + 7 = 0

Reorder the terms for easier multiplication:
-1 + 5x + -2x + 2 * 2x * x + 7 = 0

Multiply 2 * 2
-1 + 5x + -2x + 4x * x + 7 = 0

Multiply x * x
-1 + 5x + -2x + 4x2 + 7 = 0

Reorder the terms:
-1 + 7 + 5x + -2x + 4x2 = 0

Combine like terms: -1 + 7 = 6
6 + 5x + -2x + 4x2 = 0

Combine like terms: 5x + -2x = 3x
6 + 3x + 4x2 = 0

Solving
6 + 3x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
1.5 + 0.75x + x2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + 0.75x + -1.5 + x2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + 0.75x + x2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 0.75x + x2 = 0 + -1.5
0.75x + x2 = 0 + -1.5

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

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = -1.5 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = -1.5 + 0.140625

Combine like terms: -1.5 + 0.140625 = -1.359375
0.140625 + 0.75x + x2 = -1.359375

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = -1.359375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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