(4b-7)(4a-7) =……………..
✖ OPERASI ALJABAR ✖
(4b – 7)(4a – 7)
= 4ab – 28b – 28a + 49
(4bx4a)+(4bx-7)+(-7x4a)+(-7x-7)
16ab-28b-28a+49
(4b-7)(4a-7) =……………..
✖ OPERASI ALJABAR ✖
(4b – 7)(4a – 7)
= 4ab – 28b – 28a + 49
(4bx4a)+(4bx-7)+(-7x4a)+(-7x-7)
16ab-28b-28a+49