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Question

Which of the following mathematical statements is/are wrong?


  1. All are correct


Solution

The correct option is B


(x2)(x5)=x27x+10 is correct.

(x+2)(x2)=x24 is correct.

 (3x+2)2=3x2+12x+4 is wrong. The right expression is  9x2+12x+4.

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