True or false: The equation below is too complicated to use the "isolate the radical, then square both sides" method to simplify.

False

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Explanation:

The radical is one step away from being fully isolated. We would apply the rule that

In this case,

Meaning that the equation

is the same as

From here, we square both sides and use algebra to isolate x.

you need to show us the graph.

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for