Use the grouping method to factor this polynomial x ^ 3 + 2x ^ 2 + 7x + 14

B. (+7)(x+2)

Step-by-step explanation:

The greates common factor between 7 and 14 is 7 so you know that one of the terms is going to be 7....but what times 7 equals 14...2

So we know that in one set of parentheses its going to be (something +2) and in another (something +7)

Well if we know that one is going to be 2, how do we go from 2 to 2.....2 times equals

So now we know that one set of parentheses is going to be (something + 2) times (+7)

So lastly, we have to find out how to get but since we already have a in the second set of parentheses all we have to do is put a x in the first set because x times

Hope this helps!

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

22

step-by-step explanation:

22