Complete the square for the expression, then factor the trinomial. x^2-4x

please explain how to do it as well! :)

Completing the square we get:

and factoring the term we get:

Step-by-step explanation:

We need to complete the square for the expression

For completing the square the expression would be of form

For given expression we have to add (2)^2 and subtract to make it complete the square.

Now, we have to factor the polynomial using formula

So,

Completing the square we get:

and factoring the term we get:

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x