a^2-a+4a-3a^2+1=

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Solution for a^2-a+4a-3a^2+1= equation:


Simplifying
a2 + -1a + 4a + -3a2 + 1 = 0

Reorder the terms:
1 + -1a + 4a + a2 + -3a2 = 0

Combine like terms: -1a + 4a = 3a
1 + 3a + a2 + -3a2 = 0

Combine like terms: a2 + -3a2 = -2a2
1 + 3a + -2a2 = 0

Solving
1 + 3a + -2a2 = 0

Solving for variable 'a'.

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

Divide each side by '-2'.
-0.5 + -1.5a + a2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -1.5a + 0.5 + a2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -1.5a + a2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -1.5a + a2 = 0 + 0.5
-1.5a + a2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-1.5a + a2 = 0.5

The a term is -1.5a.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5a + 0.5625 + a2 = 0.5 + 0.5625

Reorder the terms:
0.5625 + -1.5a + a2 = 0.5 + 0.5625

Combine like terms: 0.5 + 0.5625 = 1.0625
0.5625 + -1.5a + a2 = 1.0625

Factor a perfect square on the left side:
(a + -0.75)(a + -0.75) = 1.0625

Calculate the square root of the right side: 1.030776406

Break this problem into two subproblems by setting 
(a + -0.75) equal to 1.030776406 and -1.030776406.

Subproblem 1

a + -0.75 = 1.030776406 Simplifying a + -0.75 = 1.030776406 Reorder the terms: -0.75 + a = 1.030776406 Solving -0.75 + a = 1.030776406 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + a = 1.030776406 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + a = 1.030776406 + 0.75 a = 1.030776406 + 0.75 Combine like terms: 1.030776406 + 0.75 = 1.780776406 a = 1.780776406 Simplifying a = 1.780776406

Subproblem 2

a + -0.75 = -1.030776406 Simplifying a + -0.75 = -1.030776406 Reorder the terms: -0.75 + a = -1.030776406 Solving -0.75 + a = -1.030776406 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + a = -1.030776406 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + a = -1.030776406 + 0.75 a = -1.030776406 + 0.75 Combine like terms: -1.030776406 + 0.75 = -0.280776406 a = -0.280776406 Simplifying a = -0.280776406

Solution

The solution to the problem is based on the solutions from the subproblems. a = {1.780776406, -0.280776406}

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