(x^2+5x+4)-(6x^2-7x+5)=

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Solution for (x^2+5x+4)-(6x^2-7x+5)= equation:


Simplifying
(x2 + 5x + 4) + -1(6x2 + -7x + 5) = 0

Reorder the terms:
(4 + 5x + x2) + -1(6x2 + -7x + 5) = 0

Remove parenthesis around (4 + 5x + x2)
4 + 5x + x2 + -1(6x2 + -7x + 5) = 0

Reorder the terms:
4 + 5x + x2 + -1(5 + -7x + 6x2) = 0
4 + 5x + x2 + (5 * -1 + -7x * -1 + 6x2 * -1) = 0
4 + 5x + x2 + (-5 + 7x + -6x2) = 0

Reorder the terms:
4 + -5 + 5x + 7x + x2 + -6x2 = 0

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

Combine like terms: 5x + 7x = 12x
-1 + 12x + x2 + -6x2 = 0

Combine like terms: x2 + -6x2 = -5x2
-1 + 12x + -5x2 = 0

Solving
-1 + 12x + -5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
0.2 + -2.4x + x2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + -2.4x + -0.2 + x2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + -2.4x + x2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -2.4x + x2 = 0 + -0.2
-2.4x + x2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
-2.4x + x2 = -0.2

The x term is -2.4x.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4x + 1.44 + x2 = -0.2 + 1.44

Reorder the terms:
1.44 + -2.4x + x2 = -0.2 + 1.44

Combine like terms: -0.2 + 1.44 = 1.24
1.44 + -2.4x + x2 = 1.24

Factor a perfect square on the left side:
(x + -1.2)(x + -1.2) = 1.24

Calculate the square root of the right side: 1.113552873

Break this problem into two subproblems by setting 
(x + -1.2) equal to 1.113552873 and -1.113552873.

Subproblem 1

x + -1.2 = 1.113552873 Simplifying x + -1.2 = 1.113552873 Reorder the terms: -1.2 + x = 1.113552873 Solving -1.2 + x = 1.113552873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = 1.113552873 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = 1.113552873 + 1.2 x = 1.113552873 + 1.2 Combine like terms: 1.113552873 + 1.2 = 2.313552873 x = 2.313552873 Simplifying x = 2.313552873

Subproblem 2

x + -1.2 = -1.113552873 Simplifying x + -1.2 = -1.113552873 Reorder the terms: -1.2 + x = -1.113552873 Solving -1.2 + x = -1.113552873 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = -1.113552873 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = -1.113552873 + 1.2 x = -1.113552873 + 1.2 Combine like terms: -1.113552873 + 1.2 = 0.086447127 x = 0.086447127 Simplifying x = 0.086447127

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.313552873, 0.086447127}

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