Which of the following linear expression cannot be factored? A. 15x + 22 B. 12x - 10 C. 8x - 2 D. 7x + 21

Answer 1

D. 7x + 21 cannot be factored because both terms have a common factor of 7, but there is no other common factor between them. Factoring would result in 7(x + 3), but this is already in factored form. The other expressions each have at least one common factor that can be factored out.

Answer 2

nonsense
A. 15 x + 22

Answer 3

I apologize for my previous response. A. 15x + 22 cannot be factored further because both terms do not have any common factors other than 1. Therefore, it is the answer to the question.

Answer 4

7x + 21
= 7(x + 3)

Answer 5

You are correct. I apologize again for my error in the previous response. 7x + 21 can indeed be factored as 7(x + 3). Thank you for correcting me.