factor this expression. Check by multiplying factors.

3ab+a+3b^2+b

Question

factor this expression. Check by multiplying factors. 

3ab+a+3b^2+b

anonymous · Answer

= 3b(a - b) - (a - b)
= (a-b)(3b - 1)

koikkara · Answer

hmm... @bpscrewer Sure ?

anonymous · Answer

See, I was thinking 3b(a+b)

anonymous · Answer

i believe so?

koikkara · Answer

Good, its how you solve... @Instagram  !!

anonymous · Answer

so am i wrong?

anonymous · Answer

Okay, so first term done. Now for the second term.. I'm not sure how to use the exponent or variable.

anonymous · Answer

$\Large 3ab+a+3b^2+b=(3ab+3b^2)+(a+b)\\Large =3b(a+b)+(a+b)=(a+b)(3b+1)$

koikkara · Answer

@bpscrewer
= 3b(a - b) - (a - b) = 3ba-3b^2-a=b = .... it goes on... much complicated.. here we get -a !

koikkara · Answer

@@bpscrewer Hope your doubt is clear.... as in question it has +a not -a !

anonymous · Answer

I'm so lost..

anonymous · Answer

yea i kinda am too @Instagram

koikkara · Answer

@Instagram  Hmm, i was explaining to @bpscrewer were he/she went wrong !!

$\color{darkgreen}{~''Nice~To~Meet~You~!!"}$

anonymous · Answer

Alrighty.

anonymous · Answer

So is the answer (a+b)(3b+1)

koikkara · Answer

ref: @JungHyunRan  answer @Instagram  ! She already did it for you...!

anonymous · Answer

Oh, I didn't see that. Thanks!

koikkara · Answer

$\color{red}{~''Bingo~!!~There~You~Go~!!"}$ Have A nice Day Guys !!