What is the complete factorization of the polynomial below x^3+x^2+4x+4?

Option 'B' is correct.

Step-by-step explanation:

Since we have given that

We need to given the complete factorization of the above expression.

So, First we factorise the above expression.

Since factorization of would contain complex number.

so, it becomes,

So, the complete factorisation would be (x+2i)(x-2i)(x+1).

Hence, Option 'B' is correct.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."