liz - 8^2 x 8^6 = 8^18

chris - 8^3 x 8^6 =8^9
jen - 8^3 x 8^6 = 64^9

a) who completed it correctly
b) what did the other 2 do wrong

3 answers

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.

When multiplying/dividing, exponents are added/subtracted respectively.
huh
Add you exponents for each equation. Which gives you the correct answer?