2a^2+6a-3a^2+3=

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Solution for 2a^2+6a-3a^2+3= equation:


Simplifying
2a2 + 6a + -3a2 + 3 = 0

Reorder the terms:
3 + 6a + 2a2 + -3a2 = 0

Combine like terms: 2a2 + -3a2 = -1a2
3 + 6a + -1a2 = 0

Solving
3 + 6a + -1a2 = 0

Solving for variable 'a'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-3 + -6a + a2 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -6a + 3 + a2 = 0 + 3

Reorder the terms:
-3 + 3 + -6a + a2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -6a + a2 = 0 + 3
-6a + a2 = 0 + 3

Combine like terms: 0 + 3 = 3
-6a + a2 = 3

The a term is -6a.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6a + 9 + a2 = 3 + 9

Reorder the terms:
9 + -6a + a2 = 3 + 9

Combine like terms: 3 + 9 = 12
9 + -6a + a2 = 12

Factor a perfect square on the left side:
(a + -3)(a + -3) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(a + -3) equal to 3.464101615 and -3.464101615.

Subproblem 1

a + -3 = 3.464101615 Simplifying a + -3 = 3.464101615 Reorder the terms: -3 + a = 3.464101615 Solving -3 + a = 3.464101615 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + a = 3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + a = 3.464101615 + 3 a = 3.464101615 + 3 Combine like terms: 3.464101615 + 3 = 6.464101615 a = 6.464101615 Simplifying a = 6.464101615

Subproblem 2

a + -3 = -3.464101615 Simplifying a + -3 = -3.464101615 Reorder the terms: -3 + a = -3.464101615 Solving -3 + a = -3.464101615 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + a = -3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + a = -3.464101615 + 3 a = -3.464101615 + 3 Combine like terms: -3.464101615 + 3 = -0.464101615 a = -0.464101615 Simplifying a = -0.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. a = {6.464101615, -0.464101615}

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