[(3x)(x)]+8=23

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Solution for [(3x)(x)]+8=23 equation: 


Simplifying
[(3x)(x)] + 8 = 23

Remove parenthesis around (3x)
[3x(x)] + 8 = 23

Multiply x * x
[3x2] + 8 = 23

Reorder the terms:
8 + [3x2] = 23

Solving
8 + [3x2] = 23

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + [3x2] = 23 + -8

Combine like terms: 8 + -8 = 0
0 + [3x2] = 23 + -8
[3x2] = 23 + -8

Combine like terms: 23 + -8 = 15
[3x2] = 15

Divide each side by '3'.
x2 = 5

Simplifying
x2 = 5

Take the square root of each side:
x = {-2.236067978, 2.236067978}

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