Exponents: simplify 9^1 + 7^4 + 3^6 (I get 331)

[horseluvr84]

Here a few exponents problems. tell me if I am right. I show my work below each problem

1. 9 to the 1st power + 7 to the 4 power + 3 to the 6th power = 331
81 + 196 + 54 = 331

 

[jwpaine]

Re: Exponents

Here a few exponents problems. tell me if I am right. I show my work below each problem

1. 9 to the 1st power + 7 to the 4 power + 3 to the 6th power = 331
81 + 196 + 54 = 331

Every number is wrong.

\(\displaystyle 9^1 = 9\) not 81. \(\displaystyle 9^2 = 81\)
\(\displaystyle 7^4 = 7 \cdot 7 \cdot 7 \cdot 7 = 49 \cdot 49\) = ????
\(\displaystyle 3^6 = 3 \cdot 3 \cdot 3 \cdot 3 \cdot 3 \cdot 3\) = \(\displaystyle 27 \cdot 27\) = ???