Question

1. (3x-2)2 =
2. (x+4)(x-5) =
3. 2 (xy+5pq) =

Answer 1

jawabn no 2.
= (x+4)(x-5)
= ( x . x ) + ( x . -5) + ( 4 . x) + ( 4 . -5)
= x² -5x +4x  -20
= x² -x -20

jawabn nomer 3
= 2 (xy+5pq)
= 2xy + 10pq