(x+1)(8x)=30

Solution for (x+1)(8x)=30 equation:

Simplifying
(x + 1)(8x) = 30

Reorder the terms:
(1 + x)(8x) = 30

Remove parenthesis around (8x)
(1 + x) * 8x = 30

Reorder the terms for easier multiplication:
8x(1 + x) = 30
(1 * 8x + x * 8x) = 30
(8x + 8x2) = 30

Solving
8x + 8x2 = 30

Solving for variable 'x'.

Reorder the terms:
-30 + 8x + 8x2 = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + 8x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-15 + 4x + 4x2) = 0

Factor a trinomial.
2((-5 + -2x)(3 + -2x)) = 0

Ignore the factor 2.
Subproblem 1
Set the factor '(-5 + -2x)' equal to zero and attempt to solve:

Simplifying
-5 + -2x = 0

Solving
-5 + -2x = 0

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

Add '5' to each side of the equation.
-5 + 5 + -2x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -2x = 0 + 5
-2x = 0 + 5

Combine like terms: 0 + 5 = 5
-2x = 5

Divide each side by '-2'.
x = -2.5

Simplifying
x = -2.5
Subproblem 2
Set the factor '(3 + -2x)' equal to zero and attempt to solve:

Simplifying
3 + -2x = 0

Solving
3 + -2x = 0

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

Add '-3' to each side of the equation.
3 + -3 + -2x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2x = 0 + -3
-2x = 0 + -3

Combine like terms: 0 + -3 = -3
-2x = -3

Divide each side by '-2'.
x = 1.5

Simplifying
x = 1.5
Solution
x = {-2.5, 1.5}