(2x+3)(x-1)=25

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Solution for (2x+3)(x-1)=25 equation: 


Simplifying
(2x + 3)(x + -1) = 25

Reorder the terms:
(3 + 2x)(x + -1) = 25

Reorder the terms:
(3 + 2x)(-1 + x) = 25

Multiply (3 + 2x) * (-1 + x)
(3(-1 + x) + 2x * (-1 + x)) = 25
((-1 * 3 + x * 3) + 2x * (-1 + x)) = 25
((-3 + 3x) + 2x * (-1 + x)) = 25
(-3 + 3x + (-1 * 2x + x * 2x)) = 25
(-3 + 3x + (-2x + 2x2)) = 25

Combine like terms: 3x + -2x = 1x
(-3 + 1x + 2x2) = 25

Solving
-3 + 1x + 2x2 = 25

Solving for variable 'x'.

Reorder the terms:
-3 + -25 + 1x + 2x2 = 25 + -25

Combine like terms: -3 + -25 = -28
-28 + 1x + 2x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-28 + 1x + 2x2 = 0

Factor a trinomial.
(-4 + -1x)(7 + -2x) = 0


Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve:

Simplifying
-4 + -1x = 0

Solving
-4 + -1x = 0

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

Add '4' to each side of the equation.
-4 + 4 + -1x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1x = 0 + 4
-1x = 0 + 4

Combine like terms: 0 + 4 = 4
-1x = 4

Divide each side by '-1'.
x = -4

Simplifying
x = -4

Subproblem 2
Set the factor '(7 + -2x)' equal to zero and attempt to solve:

Simplifying
7 + -2x = 0

Solving
7 + -2x = 0

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

Add '-7' to each side of the equation.
7 + -7 + -2x = 0 + -7

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

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

Divide each side by '-2'.
x = 3.5

Simplifying
x = 3.5
Solution
x = {-4, 3.5}

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