7.20 7.2 greater equal or less

When you add a zero onto the end of a decimal place, it does not add or subtract value from that decimal. You can essentially cross it off, and the number will be the same. The only time it really matters is if you need to use significant figures.

Therefore 7.20 = 7.2.

Equal

(1/x + 1)^2 + 6 (1/x + 1) +5