Answer:
Because you can't divide by zero.
Step-by-step explanation:
If x = -2, it makes the denominator 0. This will result in the equation being undefined because you can't have zero in the denominator.
Answer:
2n + 3
28, 31, 34; add 3
The drawing will help for number two (its sideways)
Number 1: You are multiplying 2 by n then you are adding 3 to it
0 = 4y^3 -12y^2 -40y
0 = (4y^2 -12y -40)y
0 = (4y^2 + 8 y -20y -40) y
0 = ((4y - 20) (y+2))y
y=0 \/ y= 5 \/ y= -2
Nine-eighths would simplify into one and one-eighth
Whole numbers: all non negative integers are called whole numbers. The point to be remembered is that all natural numbers are whole numbers but all whole numbers are not natural numbers. For ease you can remember that 0 is a whole number but not a natural number.
