4x(2x+3x)=7x-39

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Solution for 4x(2x+3x)=7x-39 equation:


Simplifying
4x(2x + 3x) = 7x + -39

Combine like terms: 2x + 3x = 5x
4x(5x) = 7x + -39

Remove parenthesis around (5x)
4x * 5x = 7x + -39

Reorder the terms for easier multiplication:
4 * 5x * x = 7x + -39

Multiply 4 * 5
20x * x = 7x + -39

Multiply x * x
20x2 = 7x + -39

Reorder the terms:
20x2 = -39 + 7x

Solving
20x2 = -39 + 7x

Solving for variable 'x'.

Reorder the terms:
39 + -7x + 20x2 = -39 + 7x + 39 + -7x

Reorder the terms:
39 + -7x + 20x2 = -39 + 39 + 7x + -7x

Combine like terms: -39 + 39 = 0
39 + -7x + 20x2 = 0 + 7x + -7x
39 + -7x + 20x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
39 + -7x + 20x2 = 0

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

Divide each side by '20'.
1.95 + -0.35x + x2 = 0.0

Move the constant term to the right:

Add '-1.95' to each side of the equation.
1.95 + -0.35x + -1.95 + x2 = 0.0 + -1.95

Reorder the terms:
1.95 + -1.95 + -0.35x + x2 = 0.0 + -1.95

Combine like terms: 1.95 + -1.95 = 0.00
0.00 + -0.35x + x2 = 0.0 + -1.95
-0.35x + x2 = 0.0 + -1.95

Combine like terms: 0.0 + -1.95 = -1.95
-0.35x + x2 = -1.95

The x term is -0.35x.  Take half its coefficient (-0.175).
Square it (0.030625) and add it to both sides.

Add '0.030625' to each side of the equation.
-0.35x + 0.030625 + x2 = -1.95 + 0.030625

Reorder the terms:
0.030625 + -0.35x + x2 = -1.95 + 0.030625

Combine like terms: -1.95 + 0.030625 = -1.919375
0.030625 + -0.35x + x2 = -1.919375

Factor a perfect square on the left side:
(x + -0.175)(x + -0.175) = -1.919375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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