Question

what should be subtracted from 3a + 7b - 10 to get - 2a - 7b + 9

Answer 1

Answer:

√5

Step-by-step explanation:

3a+7b-10 ...................(1)

-2a -7b+9....................(2)

adding equation (1) & (2)

3a+7b-10

-2a-7b+9

-------------

-1a-7b+19

6ab+19

√25ab

ans √5