I wish I could help you but Im doing this so i can ask sum
Answer:
1a: f(-2) means substituting -2 for x
1b: 65
I don't know the second one
Answer:
3890000000
Step-by-step explanation:
Answer:
sry I can't understand how to do this question
Answer:
0
Step-by-step explanation:
Multiplying the first equation by xy, we have ...
x^2 +y^2 = -xy
Factoring the expression of interest, we have ...
x^3 -y^3 = (x -y)(x^2 +xy +y^2)
Substituting for xy using the first expression we found, this is ...
x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0
The value of x^3 -y^3 is 0.
