Question

what is the main source of water​

Answer 1

Answer:

There are two main sources of water: surface water and groundwater. 

Answer 2

Explanation:

1): "x2" was replaced by "x^2". 1 more similar replacement(s).

Step by step solution :

STEP

1

:

Equation at the end of step 1

(((x3) - 2x2) - 6x) - 4 = 0

STEP

2

:

Checking for a perfect cube

2.1 x3-2x2-6x-4 is not a perfect cube

Trying to factor by pulling out :

2.2 Factoring: x3-2x2-6x-4

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: -6x-4

Group 2: -2x2+x3

Pull out from each group separately :

Group 1: (3x+2) • (-2)

Group 2: (x-2) • (x2)