Combine like terms. 12x²+9x³-5x³-5²-3x²-8x⁴

How do the graphs of y = 1/x and y=5/x+6 compare?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).