What it mean when their is a 2 on the top right corner of a number

That would mean that the number is getting squared.

The small 2 on the top right corner is an exponent.

An exponent is a number representing the power to which a given number is to be raised by.

So, with the 2, the number would be getting raised by the power of 2, or be multiplied by itself.

Example:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

after 1 year: 221 deer

step-by-step explanation:

30% of 170 is 51. 170+51=221