Answer:
24°
Step-by-step explanation:
72÷3=24
Answer:
x(3x2+9x+4)+12
Step-by-step explanation:
here would be the simplified and factored version of the polynomial in the question. in order to use the grouping method you find a common factor between all of the numbers and factor that out.
You have to deal with this type of question step by step. Firstly, you can figure out all the unknown values (such as sqrt x-3), by substituting x for 19, as you are trying to figure out f(x) when x=19. Therefore:
x+2=21
sqrt(x-3)=sqrt(19-3)=sqrt 16=4
Now the equation is easier to handle:
3/21 - 4
We can write this as 3/21 - 4/1 , which equals -27/7.
