(7*x+7)*(4*x^1)=5

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Solution for (7*x+7)*(4*x^1)=5 equation:


Simplifying
(7x + 7)(4x) = 5

Reorder the terms:
(7 + 7x)(4x) = 5

Remove parenthesis around (4x)
(7 + 7x) * 4x = 5

Reorder the terms for easier multiplication:
4x(7 + 7x) = 5
(7 * 4x + 7x * 4x) = 5
(28x + 28x2) = 5

Solving
28x + 28x2 = 5

Solving for variable 'x'.

Reorder the terms:
-5 + 28x + 28x2 = 5 + -5

Combine like terms: 5 + -5 = 0
-5 + 28x + 28x2 = 0

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

Divide each side by '28'.
-0.1785714286 + x + x2 = 0

Move the constant term to the right:

Add '0.1785714286' to each side of the equation.
-0.1785714286 + x + 0.1785714286 + x2 = 0 + 0.1785714286

Reorder the terms:
-0.1785714286 + 0.1785714286 + x + x2 = 0 + 0.1785714286

Combine like terms: -0.1785714286 + 0.1785714286 = 0.0000000000
0.0000000000 + x + x2 = 0 + 0.1785714286
x + x2 = 0 + 0.1785714286

Combine like terms: 0 + 0.1785714286 = 0.1785714286
x + x2 = 0.1785714286

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 0.1785714286 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 0.1785714286 + 0.25

Combine like terms: 0.1785714286 + 0.25 = 0.4285714286
1.25 + x2 = 0.4285714286

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.4285714286

Calculate the square root of the right side: 0.654653671

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.654653671 and -0.654653671.

Subproblem 1

x + 0.5 = 0.654653671 Simplifying x + 0.5 = 0.654653671 Reorder the terms: 0.5 + x = 0.654653671 Solving 0.5 + x = 0.654653671 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.654653671 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.654653671 + -0.5 x = 0.654653671 + -0.5 Combine like terms: 0.654653671 + -0.5 = 0.154653671 x = 0.154653671 Simplifying x = 0.154653671

Subproblem 2

x + 0.5 = -0.654653671 Simplifying x + 0.5 = -0.654653671 Reorder the terms: 0.5 + x = -0.654653671 Solving 0.5 + x = -0.654653671 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.654653671 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.654653671 + -0.5 x = -0.654653671 + -0.5 Combine like terms: -0.654653671 + -0.5 = -1.154653671 x = -1.154653671 Simplifying x = -1.154653671

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.154653671, -1.154653671}

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