2. 外语
  3. Simplify each of the following algebraic expressions. (a)3x2 - 6 + x + 11 - x2 + 5x (b)3(5x- 1)-x + 4 (c), where x4 (d)(2x + 5)(

Simplify each of the following algebraic expressions. (a)3x2 - 6 + x + 11 - x2 + 5x (b)3(5x- 1)-x + 4 (c), where x4 (d)(2x + 5)(

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问题 Simplify each of the following algebraic expressions.
(a)3x2 - 6 + x + 11 - x2 + 5x
(b)3(5x- 1)-x + 4
(c), where x4
(d)(2x + 5)(3x - 1)
选项
答案6x2 + 13x-5
解析
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