Question

(a+b) (c-d)+(a-c) (b+d) +2(bc+ad)​

Answer 1

Answer:

(a+b) (c-d)+(a-c) (b+d) +2(bc+ad)​

=> ac - ad + bc - bd + ab + ad - bc - cd + 2 bc + 2 ad

=> ac + (-ad + ad + 2 ad) + (bc - bc + 2 bc) - bd + ab - cd

=> ac + 2ad + 2bc - bd + ab - cd

Hope it helps

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