Question

simplify:
(a + b)(c - d) + (a - b )( c+ d) + 2( ac+ bd)​

Answer 1

Answer:

4ac

Step-by-step explanation:

ac-ab+bc-bd+ac+ad-bc-bd+2ac+2ba

(ac+ac+2ac)+(-1+1)ad+(1-1)bc+(-1-1+2)bd

4ac+(0)ad+(0)bc+(0)bd

4ac

Answer 2

Answer:

• 4 ac is answer please make me brainslit please