Question

subtract = 4a - 7ab + 3b + 12 from 12a -9ab + 5b -3​

Answer 1

Answer:-

$\\ \sf \longmapsto \: (12a - 9ab + 5b - 3) - (4a - 7ab + 3b + 12) \\ \\ \sf \longmapsto \: 12a - 9ab + 5b - 3 - 4a + 7ab - 3b - 12 \\ \\ \sf \longmapsto \: 12a - 4a + 5b - 3b - 9ab + 7ab - 3 + 12 \\ \\ \sf \longmapsto \: (12 - 4)a + (5 - 3)b -(9 + 7)ab + 9 \\ \\ \sf \longmapsto \: 8a + 2b - 16ab + 9 \\ \\ \sf \longmapsto \: 2(4a + b - 8ab) + 9$

Answer 2

Answer:

-8a+2ab-2b+15

Step-by-step explanation:

4a-7ab+3b+12-(12a-9ab+5b-3)

4a-7ab+3b+12-12a+9ab-5b+3

-8a+2ab-2b+15