Question

(2a+3b)(2c-3d) =(2a-3b) (2c+3d)

Answer 1

Answer:

Step-by-step explanation:

The way that you do it is:

multiply the left side of the equation:

(2a+3b)( 2c-3d)= 4ac+6bc-6ad-9bd

repeat for the right side:

(2a-3b) (2c+3d)=4ac-6bc+6ad-9bd

4ac+6bc-6ad-9bd = 4ac-6bc+6ad-9bd

move everything to the left side of the equation:

12bc-12ad=0

divide by 12 and move terms over

ad=bc

divide each side by bd

ad/bd=bc/bd

a/b=c/d