Question

Factor completely: 10xy + 3y + 20ax + 6a

(10x − 3)(y − 2a)

(10x − 3)(y + 2a)

(10x + 3)(y + 2a)

(10x + 3)(y − 2a)

Answer 1

Group the terms in pairs.

Answer 2

the third choice....

Answer 3

cuz first you factor out (10x + 3) from each side to get
\[(10x+3)(y+y) + (10x+3)(2a+2a)\]

Answer 4

facotr out the (10x+3) from the whole equation so you get...
\[(10x+3)(2y+4a)\] in which the closest answer that you have would be the third chioce... but yeahhh its wrong...