Multiply. State the product in simplest form.

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?