Answer:
x = ± 2
Step-by-step explanation:
Given
x² = 4 ( take the square root of both sides )
x = ±
= ± 2
Since 2 × 2 = 4 and - 2 × - 2 = 4
Answer:

Step-by-step explanation:
<u>Radicals</u>
We have the expression:

Since 6=2*3, it can be rewritten as:

Joining like radicals:



This is the required form with b=2
Yes, the decimal form of
is indeed a repeating decimal. The expression is equivalent to
, which is also 1.3333333 or "1.3 bar", signifying that the 3 will repeat infinitely.