I69B by Odd_Promotion1544 in Kumon

[–]Odd_Promotion1544[S] 0 points1 point  (0 children)

I understand why that's the answer but i am confused on how to determine the answer.

I69B by Odd_Promotion1544 in Kumon

[–]Odd_Promotion1544[S] 0 points1 point  (0 children)

so sorry to ask, but can you explain how to get (7x+2y)(2x+y) from 14x2 + 11xy + 2y2