WILL GIVE BRAINLIEST On a test, Marcus is asked to simplify . Here is his work:

√128 = √16 · √8 = 4√8

Which statement best describes Marcus' answer?

He is incorrect because 16 times 8 is not 128.

He is incorrect because he did not use the largest perfect square.

He is incorrect because the 4 and the 8 should be switched around in his answer.

He is correct.

well it’s been 4 days s what’s the answer because I need it

Step-by-step explanation:

He did not use the largest perfect square

Step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

it would not be increasing by nothing that i can see probably by 25 percent that is all i can sat\y for now if i have any thing else to say i will edit this.

step-by-step explanation: