Originally Posted by

**Forkmaster** Um. i was out the day of the lesson for this assignment, and i read the book's lesson, but it doesn't explain everything. Basically, it says

$\displaystyle a^3 • a^2 = a • a • a • a • a = a^5$

so i learn that a^3 • a^2 (in this situation) is basically adding the exponents. no problem.

then it says...

$\displaystyle (3^5)^2 = 3 to the power of 10$

ok, so you multiply parethetical exponents and outside exponents. again, nothing difficult.

then it says..

$\displaystyle (6 • 5)^2 = 6^2 • 5^2 = 36 • 25 = 900$

add the exponent to everything in parenthesis. again, easy.

but then you get to the problems...

$\displaystyle (3b)^3 • b$

um. so like, you have 3b^3, and multiply it by 1b? so it's... still 3b^3? or did i mess up somewhere?

$\displaystyle 5^3 • (5a^4)^2$

5^3=125, so it's 125 • ...5a^8? or 5a^6? @_@

$\displaystyle 4x • (x • x^3)^2$

buhhh.... 4x • (x^4)^2.. 4x • x^8... 4x^8?

there's more confusing ones, but hopefully i can sort most of them out if i get these figured out...thanks