What is the product of the polynomials in simplest form??? 3x^2+3 and 4x^2-1

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25