Find the value of x² - x+1 when x=√3 -1, in the form a+b√3 where a and b are integers

If you compare this to , then and .

Step-by-step explanation:

We are given and we are asked to find the value of .

So we will need to find .

Square both sides:

Expand using identity: .

Let's go back to the full .

If you compare this to , then and .

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

5050 i think

step-by-step explanation: