To find the answer, one does 4x4 to get your 4 squared. Then times that by 2. Then times that 4 times. It should look like this:
(42x2)4
(16x2)4
(32)4
32x32x32x32
1,048,576
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"Squared" means multiplied by itself. So 2 squared is two multiplied by 2. 2*2 which is also written as 22 and which equals 4.
In mathematics, the term "squared" refers to multiplying a number by itself. For example, if a number x is squared, it is equivalent to x multiplied by x, or x^2. It is a way of indicating that a number is being raised to the power of 2.
r2 or r to the power 2 or just r squared.
(x2 + 1)(x2 - 2)