4X^2+10X=-X^2-X+4

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Solution for 4X^2+10X=-X^2-X+4 equation:


Simplifying
4X2 + 10X = -1X2 + -1X + 4

Reorder the terms:
10X + 4X2 = -1X2 + -1X + 4

Reorder the terms:
10X + 4X2 = 4 + -1X + -1X2

Solving
10X + 4X2 = 4 + -1X + -1X2

Solving for variable 'X'.

Reorder the terms:
-4 + 10X + X + 4X2 + X2 = 4 + -1X + -1X2 + -4 + X + X2

Combine like terms: 10X + X = 11X
-4 + 11X + 4X2 + X2 = 4 + -1X + -1X2 + -4 + X + X2

Combine like terms: 4X2 + X2 = 5X2
-4 + 11X + 5X2 = 4 + -1X + -1X2 + -4 + X + X2

Reorder the terms:
-4 + 11X + 5X2 = 4 + -4 + -1X + X + -1X2 + X2

Combine like terms: 4 + -4 = 0
-4 + 11X + 5X2 = 0 + -1X + X + -1X2 + X2
-4 + 11X + 5X2 = -1X + X + -1X2 + X2

Combine like terms: -1X + X = 0
-4 + 11X + 5X2 = 0 + -1X2 + X2
-4 + 11X + 5X2 = -1X2 + X2

Combine like terms: -1X2 + X2 = 0
-4 + 11X + 5X2 = 0

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

Divide each side by '5'.
-0.8 + 2.2X + X2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + 2.2X + 0.8 + X2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + 2.2X + X2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + 2.2X + X2 = 0 + 0.8
2.2X + X2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
2.2X + X2 = 0.8

The X term is 2.2X.  Take half its coefficient (1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
2.2X + 1.21 + X2 = 0.8 + 1.21

Reorder the terms:
1.21 + 2.2X + X2 = 0.8 + 1.21

Combine like terms: 0.8 + 1.21 = 2.01
1.21 + 2.2X + X2 = 2.01

Factor a perfect square on the left side:
(X + 1.1)(X + 1.1) = 2.01

Calculate the square root of the right side: 1.417744688

Break this problem into two subproblems by setting 
(X + 1.1) equal to 1.417744688 and -1.417744688.

Subproblem 1

X + 1.1 = 1.417744688 Simplifying X + 1.1 = 1.417744688 Reorder the terms: 1.1 + X = 1.417744688 Solving 1.1 + X = 1.417744688 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + X = 1.417744688 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + X = 1.417744688 + -1.1 X = 1.417744688 + -1.1 Combine like terms: 1.417744688 + -1.1 = 0.317744688 X = 0.317744688 Simplifying X = 0.317744688

Subproblem 2

X + 1.1 = -1.417744688 Simplifying X + 1.1 = -1.417744688 Reorder the terms: 1.1 + X = -1.417744688 Solving 1.1 + X = -1.417744688 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + X = -1.417744688 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + X = -1.417744688 + -1.1 X = -1.417744688 + -1.1 Combine like terms: -1.417744688 + -1.1 = -2.517744688 X = -2.517744688 Simplifying X = -2.517744688

Solution

The solution to the problem is based on the solutions from the subproblems. X = {0.317744688, -2.517744688}

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