Answer:
x^2 - 2x + 1
Step-by-step explanation:
(x-1)^2 = (x-1)(x-1)
= x^2 - x - x + 1
= x^2 - 2x + 1
Answer:

Step-by-step explanation:
we have

we know that

substitute

Interquartile range is the range is the number in the dead center, you have to divide the number line into 2 sections. The middle of everything and the middle of both section is the interquartile range
Hope this helps!