A little help would be nice

7 is A, 8 is B

Step-by-step explanation:

7). 9x² + 6   8). 2x³ + 6x² + 2

Step-by-step explanation:

7). (7x² - 1) + (2x² + 7)

= 7x² - 1 + 2x² + 7

= 7x² + 2x² - 1 + 7

= 9x² + 6

8). (2x³ + 3x² - 5) + (3x² + 7)

= 2x³ +3x² - 5 + 3x² + 7

= 2x³ + 3x² + 3x² -5 + 7

= 2x³ + 6x² + 2

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