Answer:
add the numbers and divide by how many numbers there are, thats how you find the mean
Step-by-step explanation:
Answer: 1) Let's simplify step-by-step.
x22(x+y)−y2
Distribute:
=(x22)(x)+(x22)(y)+−y2
=x23+x22y+−y2
Answer:
=x23+x22y−y2
2)Let's simplify step-by-step.
x4+x2y2+y4
There are no like terms.
Answer:
=x4+x2y2+y4
4 is missing I assume. But I could be wrong
See photos for solutions and steps :)