Question

http://prntscr.com/lm3sa0

Answer 1

@Vocaloid

Answer 2

hmm, im thinking D

Answer 3

good

Answer 4

then for b)

Answer 5

for a fractional exponent, remember the numerator becomes the power and the denominator becomes the root

Answer 6

A is one

Answer 7

good

and if a is greater than b, then a/b must be greater than 1

so if 3 is raised to an exponent greater than 1, is the end result greater or less than 3?

Answer 8

greater

Answer 9

good so first two choices

Answer 10

can u just check these rq?

http://prntscr.com/lm3vwp

Answer 11

check question 10

the 1/3 exponent applies to the 8 as well

Answer 12

I actually had trouble with that

Answer 13

what is 8^(1/3) = ?

Answer 14

2

Answer 15

good so the coefficient in front should be 2 not 8

Answer 16

so B?

Answer 17

yes

Answer 18

http://prntscr.com/lm3xu1

Answer 19

check question 3 again

-4sqrt(2x^3y) can only simplify to -4xsqrt(2xy). the 2 has to stay within the radical because it can't be simplified further

Answer 20

that being said you can factor the expression from B into one of the other answer choices

Answer 21

take 2x^3 * sqrt(2xy) - 4x*sqrt(2xy)
and factor out sqrt(2xy).

Answer 22

A*B - A*C = A(B-C) factors out A

apply this logic to 2x^3 * sqrt(2xy) - 4x*sqrt(2xy) and factor out sqrt(2xy).

Answer 23

confused LOL

Answer 24

if you see something like

"A*B - A*C" where both terms have some factor A in common, you can remove A from both expressions, and write it outside the parentheses to get

A(B-C)

Answer 25

notice that both terms in 2x^3 * sqrt(2xy) - 4x*sqrt(2xy)

have sqrt(2xy), so you can remove this from both expressions, write it outside the parentheses and get...?

Answer 26

1. identify the common factor sqrt(2xy) from
2x^3y * sqrt(2xy) - 4x*sqrt(2xy)
2. remove the factor sqrt(2xy) from both expressions to get

2x^3y - 4x

3. put the expression inside parentheses and write the common factor outside

sqrt(2xy) ( 2x^3y - 4x )

Answer 27

would recommend reviewing how to factor out a GCF