The polynomial's other factor would be 3x + 5, therefore, making it B. 3x + 5.
You can solve this equation by doing the following steps:
6x2 + x - 15 is your polynomial. So take your polynomial and factor it down.
6x^2 + x - 15 = 6x^2 - 9x + 10x - 15 = 3x(2x - 3) + 5(2x - 3) = (3x+5)(2x - 3).
Check your answers again.
A) 3x - 5
Would this be possible considering our last answer? Which was (3x + 5)(2x - 3). No, it's not adding, so it's wrong.
B) 3x + 5
Could this be possible? Yes, it could because it has the first half of our answer. (3x + 5), keep this in mind.
C) 4x - 5
There was no 4 in the last part, so no. It's wrong. We're working with 2, 3, and 5 only. No 4.
D) 4x + 5
Again, no 4. Make sure to double-check your answers before clicking.
The answer is B) 3x + 5.
Hope you found this helpful! Have a wonderful day and stay safe! (/O^O)/ *