Answer:
54
Step-by-step explanation:
n = 8
6(n + 1)
6(8 + 1)
6(9)
54
check the picture below.
so it has a base of 18x18 and a height of that much.

extraneous root is a solution o an equation that seems to be right but when we check it (by substituting it into the original equation) it turns out not to be right
For example, a mix number like 1 ½ basically equals to a whole and a half and in this case the whole would be 2 and the half of 2 is 1. hence, the improper fraction of 1 ½ is 3/2.
Step-by-step explanation:
answer= 8
I hope it's help uhh