Math Problem Statement
Rút gọn biểu thức:A=x(x-1)+(x-2)(x+2)-2x^2
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Polynomial Simplification
Factoring
Formulas
Distributive property: a(b + c) = ab + ac
Difference of squares: (a - b)(a + b) = a^2 - b^2
Theorems
Distributive property
Difference of squares
Suitable Grade Level
Grades 8-10