Question

Please Help!

Answer 1

Answer:  The correct option is (A) $3(x^2-7).$

Step-by-step explanation:  We are given to factorize the following quadratic expression completely :

$P(x)=3x^2-21.$

To factorize the given expression, first we should take common terms out and then we will continue the process.

The factorization is as follows :

$P(x)\\\\=3x^2-21\\\\=3(x^2-7).$

Thus, the required factorized form is $3(x^2-7).$

Option (A) is correct.

Answer 2

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.