How are the binomial factors of x squared plus 7 x minus 18 and x squared minus 7 x minus 18 similar? How are they different?

The product of two negative rational numbers is always zero sometimes zero never zero

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?

Describe what moves you could use to create the transformation of the original image shown at right