Harriet thinks of a number. She squares it and then adds 11.
Harriet's answer is 36.
What was her original number?

5

Step-by-step explanation:

36-11=25

the square root of 25 is 5. you just have to do the problem backwards

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.