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