数学表达式正确性判断小测验
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Questions and Answers

下列哪个是最正确的?

  • (a+b)-(a-b)+ab+a/b
  • (a+b)+(a-b)+(ab+a)/b
  • (a+b)-(a-b)+(ab+a)/b
  • (a+b)+(a-b)+ab+a/b (correct)

下列哪个表达式等于a+2b+ab/a-b?

  • (a+b)+(a-b)+ab/a-b (correct)
  • (a+b)+(a-b)+ab/(a-b)
  • (a+b)-(a-b)+ab/a-b
  • (a+b)-(a-b)+ab/(a-b)

下列哪个表达式等于a^2+b^2+ab+a/b?

  • (a+b)^2+ab+a/b (correct)
  • (a+b)^2+ab^2+a/b
  • (a+b)^2+ab+a/b^2
  • (a+b)^2+ab^2+a/b^2

下列哪个表达式等于a+b+ab+a/b?

<p>(a+b)^2+ab (D)</p> Signup and view all the answers

下列哪个表达式等于2a-b+ab+a/b?

<p>a^2+b^2+ab-a/b (A)</p> Signup and view all the answers

下列哪个表达式等于a+b+ab-a/b?

<p>a^2+b^2-ab (B)</p> Signup and view all the answers

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