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3 years ago

X + 4 is prime x2 – 9 can be factored using the formula.

Mathematics

2 answers:

Anna71 [15]3 years ago

3 0

We are given two binomials: x+4 , x^2-9.

x+4 can't be factored. Therefore, it is a prime.

Let us work on x^2-9.

9 could be written as 3^2.

Therefore, x^2-9 = x^2 - 3^2.

Now, we can apply difference of the squares formula to factor it.

We know a^2 -b^2 = (a-b) (a+b).

Therefore, x^2 - 3^2 can be factored as (x-3) (x+3).

So, x^2-9 is not a prime binomial because it can be factored as (x-3) (x+3).

pogonyaev3 years ago

3 0

Answer:

difference-of-squares

Step-by-step explanation:

x + 4 is prime

x2 – 9 can be factored using the

difference-of-squares formula.

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