Math Problem Statement

先化简, 再求值: \displaylinesx21x+2x2+4x+4x2x1x+1, 其中x=6.{\displaylines\frac{x^2-1}{x+2}\cdot\frac{x^2+4x+4}{x^2-x}\cdot\frac{1}{x+1},\text{ 其中}x=6.\\ }

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Rational Expressions
Simplification
Substitution

Formulas

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Theorems

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Suitable Grade Level

Grades 10-12