Write 7power of 8 times 7power4
Over 7 cubed
as a single power of 7

U should try a video because i can't do exponents on my computer and i don't have time to write it.

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

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

a is the right answer