(-7x+12)x+-1x(2x+10)-3=

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Solution for (-7x+12)x+-1x(2x+10)-3= equation: 


Simplifying
(-7x + 12) * x + -1x(2x + 10) + -3 = 0

Reorder the terms:
(12 + -7x) * x + -1x(2x + 10) + -3 = 0

Reorder the terms for easier multiplication:
x(12 + -7x) + -1x(2x + 10) + -3 = 0
(12 * x + -7x * x) + -1x(2x + 10) + -3 = 0
(12x + -7x2) + -1x(2x + 10) + -3 = 0

Reorder the terms:
12x + -7x2 + -1x(10 + 2x) + -3 = 0
12x + -7x2 + (10 * -1x + 2x * -1x) + -3 = 0
12x + -7x2 + (-10x + -2x2) + -3 = 0

Reorder the terms:
-3 + 12x + -10x + -7x2 + -2x2 = 0

Combine like terms: 12x + -10x = 2x
-3 + 2x + -7x2 + -2x2 = 0

Combine like terms: -7x2 + -2x2 = -9x2
-3 + 2x + -9x2 = 0

Solving
-3 + 2x + -9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
0.3333333333 + -0.2222222222x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + -0.2222222222x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + -0.2222222222x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + -0.2222222222x + x2 = 0 + -0.3333333333
-0.2222222222x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
-0.2222222222x + x2 = -0.3333333333

The x term is -0.2222222222x.  Take half its coefficient (-0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
-0.2222222222x + 0.01234567901 + x2 = -0.3333333333 + 0.01234567901

Reorder the terms:
0.01234567901 + -0.2222222222x + x2 = -0.3333333333 + 0.01234567901

Combine like terms: -0.3333333333 + 0.01234567901 = -0.32098765429
0.01234567901 + -0.2222222222x + x2 = -0.32098765429

Factor a perfect square on the left side:
(x + -0.1111111111)(x + -0.1111111111) = -0.32098765429

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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