2(x^2+5)=7x+48

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Solution for 2(x^2+5)=7x+48 equation:


Simplifying
2(x2 + 5) = 7x + 48

Reorder the terms:
2(5 + x2) = 7x + 48
(5 * 2 + x2 * 2) = 7x + 48
(10 + 2x2) = 7x + 48

Reorder the terms:
10 + 2x2 = 48 + 7x

Solving
10 + 2x2 = 48 + 7x

Solving for variable 'x'.

Reorder the terms:
10 + -48 + -7x + 2x2 = 48 + 7x + -48 + -7x

Combine like terms: 10 + -48 = -38
-38 + -7x + 2x2 = 48 + 7x + -48 + -7x

Reorder the terms:
-38 + -7x + 2x2 = 48 + -48 + 7x + -7x

Combine like terms: 48 + -48 = 0
-38 + -7x + 2x2 = 0 + 7x + -7x
-38 + -7x + 2x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-38 + -7x + 2x2 = 0

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

Divide each side by '2'.
-19 + -3.5x + x2 = 0

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + -3.5x + 19 + x2 = 0 + 19

Reorder the terms:
-19 + 19 + -3.5x + x2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -3.5x + x2 = 0 + 19
-3.5x + x2 = 0 + 19

Combine like terms: 0 + 19 = 19
-3.5x + x2 = 19

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = 19 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = 19 + 3.0625

Combine like terms: 19 + 3.0625 = 22.0625
3.0625 + -3.5x + x2 = 22.0625

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = 22.0625

Calculate the square root of the right side: 4.697073557

Break this problem into two subproblems by setting 
(x + -1.75) equal to 4.697073557 and -4.697073557.

Subproblem 1

x + -1.75 = 4.697073557 Simplifying x + -1.75 = 4.697073557 Reorder the terms: -1.75 + x = 4.697073557 Solving -1.75 + x = 4.697073557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 4.697073557 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 4.697073557 + 1.75 x = 4.697073557 + 1.75 Combine like terms: 4.697073557 + 1.75 = 6.447073557 x = 6.447073557 Simplifying x = 6.447073557

Subproblem 2

x + -1.75 = -4.697073557 Simplifying x + -1.75 = -4.697073557 Reorder the terms: -1.75 + x = -4.697073557 Solving -1.75 + x = -4.697073557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -4.697073557 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -4.697073557 + 1.75 x = -4.697073557 + 1.75 Combine like terms: -4.697073557 + 1.75 = -2.947073557 x = -2.947073557 Simplifying x = -2.947073557

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.447073557, -2.947073557}

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