Question

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

Answer 1

Step-by-step explanation:

(a+b)(cd) + (a-b)(c+d) + 2 (ac+bd)

a(cd)+b(cd) + a(c+d)-b(c+d) + 2ac + 2bd

acd +bcd + ac+ad - cb-bd + 2ac + 2bd