Question

What should be subtracted from 5a2b2 - 3ab + 8ab2 - 4a2b-6 to obtain -18ab2-4a²b2 + 3a2b-4?​

Answer 1

Answer:

take other number x

5a2b2-3ab+8ab2-4a2b-6-x = -18ab2-4a2b2 +3a2b-4

shift on RHS and to find x subtract

-x=-18ab2-4a2b2+3a2b-4 -(5a2b2-3ab+8ab2-4a2b-6)

-x= -18ab2-4a2b2+3a2b-4-5a2b2+3ab-8ab2+4a2b+6

-x= -26ab2-9a2b2+7a2b+ 3ab +2

x= +26ab2+9a2b2-7a2b- 3ab -2