Question

If we subtract 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3, then the answer is:
8a+2ab+2b+15

8a+2ab+2b-15

8a-2ab+2b-15

8a-2ab-2b-15
​

Answer 1

(12a - 9 ab + 5b - 3) - (4a - 7ab + 3b + 12) = 8a - 2ab + 2b -15 which is option A).

Hope this answer helps you. Please mark as brainliest! :)

Answer 2

On subtracting 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3 we get
8a – 2ab + 2b – 15.    

Given:

4a – 7ab + 3b + 12 and 12a – 9ab + 5b – 3  

To find:

Subtract 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3  

Solution:

The given subtraction can be done as follows

=>  12a – 9ab + 5b – 3 – (4a – 7ab + 3b + 12)

Multiply ' – ' with 2nd expression and change the signs

=>  12a – 9ab + 5b – 3 – 4a + 7ab – 3b – 12

Add and subtract like terms  

=>  12a – 9ab + 5b – 3 – 4a + 7ab – 3b – 12    

=> 12a – 4a – 9ab + 7ab + 5b – 3b – 3 – 12

=> 8a – 2ab + 2b – 15      

 

Therefore,

On subtracting 4a – 7ab + 3b + 12 from 12a – 9ab + 5b – 3 we get
8a – 2ab + 2b – 15.    

Learn more about similar problems at

https://brainly.in/question/7191675

#SPJ3