the complete question is
What polynomial identity should be used to prove that 21 = 25 − 4
A: Difference of cubes
B: Difference of Squares
C: Square of Binomial
D: Sum of Cubes
we know that
The difference of two squares is a squared number subtracted from another squared number
So
In this problem
then
therefore
the answer is the option
B: Difference of Squares
Answer:
27
Step-by-step explanation:
Evaluate from the inside out, that is
Evaluate h(2) , then use the value obtained to evaluate g(x) and the value obtained here to evaluate f(x) , that is
h(2) = 2² = 4 , then
g(4) = 3(4) + 2 = 12 + 2 = 14, then
f(14) = 2(14) - 1 = 28 - 1 = 27
Answer:
Step-by-step explanation: