Answer:
The fully factored form is 3(x^2 - 7))
Step-by-step explanation:
The only thing you can do with this equation is take out a factor of 3. You cannot simplify the resulting parenthesis without using irrational numbers.
Answer: The correct option is (A) [tex]3(x^2-7).[/tex]
Step-by-step explanation: We are given to factorize the following quadratic expression completely :
[tex]P(x)=3x^2-21.[/tex]
To factorize the given expression, first we should take common terms out and then we will continue the process.
The factorization is as follows :
[tex]P(x)\\\\=3x^2-21\\\\=3(x^2-7).[/tex]
Thus, the required factorized form is [tex]3(x^2-7).[/tex]
Option (A) is correct.
