Question

Q1 = simplify :- (1) . ( a+b ) ( c-d ) + ( a-b ) ( c+d ) + ( ac + bd ) .​

Answer 1

Answer:

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

ac - bd + ac - bd + ac + bd

3ac -2bd + bd

3ac - bd ur... ans....

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Now,

(a+b)(c−d)+(a−b)(c+d)+2(ac+bd)

=(ac+bc−ad−bd)+(ac+ad−bc−bd)+2(ac+bd)

=4ac.