Factorize-
a]54x[tex]x^{2} -96yx^{2}
b]3a[tex]x^{2} +9a+6

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Which expression is equivalent to -5(3x - 6/7)