Question

subtract 2 ab + cd - ac - 2bd from ab - 2cd + 2ac + bd in column method
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Answer 1

2ab+cd−ac−2bd from ab−2cd+2ac+bd

The value of the subtraction is calculated as follows

(ab−2cd+2ac+bd)−(2ab+cd−ac−2bd)

=ab−2ab−2cd−cd+2ac+ac+bd+2bd

On calculating further, we get

=−ab−3cd+3ac+3bd

Answer 2

Answer:

2ab+cd−ac−2bd from ab−2cd+2ac+bd

The value of the subtraction is calculated as follows

(ab−2cd+2ac+bd)−(2ab+cd−ac−2bd)

=ab−2ab−2cd−cd+2ac+ac+bd+2bd

On calculating further, we get

=−ab−3cd+3ac+3bd

I hope this answer will helps..