precalculus help! i'm having some trouble with my summer assignment. help would be very appreciated :)))

Problem 3:

We are given the following complex number and I'm assuming we want to simplify it:

Using the complex arithmetic rule (research about this if you're not familiar with it, it's very helpful):

Simplifying gives us:

Problem 6:

You seem to have done this problem correctly

Expanding gives us:

This can't be simplified further as the 8th root of 8 gives us an irrational number

Let me know if you need any clarifications or extra help, thanks!

answer: t=3

step-by-step explanation:

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x