Simplify
A. 16
B. 17
C. 18
D. 19

C) 18

Step-by-step explanation:

Your problem → Simplify square root of 324

First find factors of 324

2324

2162

381

327

39

33

1

324=2×2×3×3×3×3

324 = 2^2 × 3^4

Taking squareroot

∴√324=√2^2 × 3^4

=2 × 3^2

=18

∴ 324 is a perfect square

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents