Approximate Values of x

Section 2.7
54 & 58

Can you show me how to do 54 and 58 as a guide for me to try a few more on my own? Thank you.

 

54. approximate the value of x that satisfy each inequality
y=(1/2)x^2-2x+1

a. y<=0
b. y>=7



a. y<=0 for approximately x=1/2 and x=3.5

b. y>=7 for approximately x=-2 and x=6

58.

y=2(x-2)/(x+1)

a. y<=0
b. y>=8



a. y<=0 for approximately x=2
b. y>=8 for approximately x=-2

 

I will do a few more on my own for extra practice but nothing to worry about. I am not going to understand every question, every topic, every section and/or every chapter regardless of course. Moving on....