(-3x^2+x-1)+(x^2+x-4)=

Solution for (-3x^2+x-1)+(x^2+x-4)= equation:

Simplifying
(-3x2 + x + -1) + (x2 + x + -4) = 0

Reorder the terms:
(-1 + x + -3x2) + (x2 + x + -4) = 0

Remove parenthesis around (-1 + x + -3x2)
-1 + x + -3x2 + (x2 + x + -4) = 0

Reorder the terms:
-1 + x + -3x2 + (-4 + x + x2) = 0

Remove parenthesis around (-4 + x + x2)
-1 + x + -3x2 + -4 + x + x2 = 0

Reorder the terms:
-1 + -4 + x + x + -3x2 + x2 = 0

Combine like terms: -1 + -4 = -5
-5 + x + x + -3x2 + x2 = 0

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

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

Solving
-5 + 2x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
2.5 + -1x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -1x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -1x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -1x + x2 = 0 + -2.5
-1x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-1x + x2 = -2.5

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = -2.5 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -2.5 + 0.25

Combine like terms: -2.5 + 0.25 = -2.25
0.25 + -1x + x2 = -2.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = -2.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.