2a^2 + a - 28. Factor completely

Question

anonymous · Answer

(4+a) (-7+2 a)

hero · Answer

Hint: Find two numbers that multiply to get -56, but add to get 1

@Unam should be scolded for giving answers without explanations.

anonymous · Answer

I was gonna explain it afterwards, figure out he needed the answer first

anonymous · Answer

and then afterwards I'll explain it...that's my strategy, but thanks for your clear explanation

hero · Answer

If the student is already here, you should try to guide the student to come up with the answer him or herself by explaining the steps of how to solve it.

anonymous · Answer

Oh ok, I'll do that next time...thanks

hero · Answer

Posting the answer first does nothing but simply violate OS code of conduct policy.

anonymous · Answer

Oh ok...so I guess I'm not the only one who do that...

anonymous · Answer

hero, i know ur trying to help him but one mistake isnt the end of the world

hero · Answer

Too many users are doing the very same thing Unam is doing. Don't worry, the issue will be thoroughly sorted out in the up and coming Open House session next week.

anonymous · Answer

thanks Hero....sometimes i'm in rush and i just do that....i hope when people get the answers, hopefully they learn how to get it...in that way they will be honest with themselves :)

hero · Answer

They don't need the answer. They need to understand the problem, the explanation and the steps involved that lead to the answer. Getting the answer is a conclusion the original poster of the question should be able to figure out for him or herself, but only after a clear explanation of how to properly approach the question has been made. If anyone gives just the answer, the user still will have no clue how they got the answer.