Why would "-7" in the expression (x^2+3)-(x-7) become positive?
2 answers:
You might be interested in
Answer:
y = -x - 4
Step-by-step explanation:
2y + x = -8
2y = -x - 8
=
y = -x - 4
notice, the first term is 9.5
from there it goes to 11.5, well, how much is it being added to get 11.5?
well 9.5 + 2, is 11.5, so it was added 2 to 9.5
then it goes from 11.5 to 13.5, namely, 11.5+2 = 13.5
and then 13.5+2 = 15.5 and so on
so, the "common difference" or the common addition value, is 2
how do you find the nth term?
well