Question

सरल कीजिए: (a+b) (c-d) + (a-b) (c+d) + (ac+bd)​

Answer 1

Answer:

(ac+bc−ad−bd)+(ac+ad−bc−bd)+2(ac+bd)

=4ac

Answer 2

Answer:

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

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

ac - ad +bc - bd +ac+ ad -bc - bd + ac + bd

ac +ac+ac -ad +ad +bc - bc -bd -bd + bd

3ac - bd

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