The answer is:<span>
A. Multiplying by 25 is the same as multiplying by 40%.</span>
The modulus of the complex number was derived by using Pythagorean Theorem. So it is essentially the length between complex point and origin (0,0).
So one with the greatest modulus is the one that are farthest away from the origin. z₁ looks significantly far compared to other complex points, so the answer is F.
<em><u>The polynomials are:</u></em>



<em><u>Not a polynomial are:</u></em>
![4\sqrt[3]{x} -\sqrt{x} -20](https://tex.z-dn.net/?f=4%5Csqrt%5B3%5D%7Bx%7D%20-%5Csqrt%7Bx%7D%20%20-20)


<em><u>Solution:</u></em>
Polynomial is an expression with variables and coefficients,
Which involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables
<em><u>Option 1</u></em>
![4\sqrt[3]{x} -\sqrt{x} -20](https://tex.z-dn.net/?f=4%5Csqrt%5B3%5D%7Bx%7D%20-%5Csqrt%7Bx%7D%20%20-20)
Polynomial does not include roots
This is not a polynomial equation
<em><u>Option 2</u></em>

This is polynomial expression involving addition and subtraction between terms with non-negative integer exponents of variables
<em><u>Option 3</u></em>

This is not a polynomial. This equations involves negative integer exponents of variables
<em><u>Option 4</u></em>

This is a polynomial involving addition and subtraction between terms with non-negative integer exponents of variables
<em><u>Option 5</u></em>

This is not a polynomial. This equations involves negative integer exponents of variables
<em><u>Option 6</u></em>

This is a polynomial involving addition and subtraction between terms with non-negative integer exponents of variables
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