Answer:
x² - 30 + 5x
Step-by-step explanation:
(x + 5)(x − 5)
=x(x − 5)+5(x − 5)
=x² - 5 + 5x - 25
=x² - 30 + 5x
Answer:
The last one at the right
Step-by-step explanation:
It is a function because not of the x axis numbers are repeated.
It means that the two vectors are perpendicular or orthogonal
I think the answer would be B