(x+2)(1-x)=-4

Solution for (x+2)(1-x)=-4 equation:

Simplifying
(x + 2)(1 + -1x) = -4

Reorder the terms:
(2 + x)(1 + -1x) = -4

Multiply (2 + x) * (1 + -1x)
(2(1 + -1x) + x(1 + -1x)) = -4
((1 * 2 + -1x * 2) + x(1 + -1x)) = -4
((2 + -2x) + x(1 + -1x)) = -4
(2 + -2x + (1 * x + -1x * x)) = -4
(2 + -2x + (1x + -1x2)) = -4

Combine like terms: -2x + 1x = -1x
(2 + -1x + -1x2) = -4

Solving
2 + -1x + -1x2 = -4

Solving for variable 'x'.

Reorder the terms:
2 + 4 + -1x + -1x2 = -4 + 4

Combine like terms: 2 + 4 = 6
6 + -1x + -1x2 = -4 + 4

Combine like terms: -4 + 4 = 0
6 + -1x + -1x2 = 0

Factor a trinomial.
(2 + -1x)(3 + x) = 0

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

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

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

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

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

Simplifying
3 + x = 0

Solving
3 + x = 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 + x = 0 + -3

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

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

Simplifying
x = -3
Solution
x = {2, -3}