The answer is a² + 6. "Sum of a squared and 6" means you square a value and then add 6 to it.
Answer:
use a calculator
Step-by-step explanation:
there for question b
Factors of the given expression are 
Given expression is

<h3>What is a factor?</h3>
A factor is a number that divides another number completely.
Let us split the middle term as:

Therefore, factors of the given expression are 
To get more about factors visit:
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If the equation is y = 3(x + 4)2<span> - 6, the value of h is -4, and k is -6. To convert a quadratic from y = ax</span>2<span> + bx + c </span>form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2<span> - 4x + 5 into </span>vertex form<span>, and state the </span>vertex<span>.</span>
Volume = π • r² • height
Height = Volume / (PI * radius^2)
Source www.1728.com/diamform.htm