Math Problem Statement

Упростите выражение. 12 баллов 3 a b a + b ( a b − b a ) a+b 3ab ​ ( b a ​ − a b ​ )

Выберите правильный вариант ответа.

3 a 2 − 3 b 2 3a 2 −3b 2

3 a − 3 b 3a−3b

3 3

3 ( a − b ) a + b a+b 3(a−b) ​

3 a + 3 b 3a+3b

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Simplification of Expressions
Fractional Expressions
Difference of Squares

Formulas

Difference of Squares: a^2 - b^2 = (a - b)(a + b)

Theorems

Simplification of Fractions
Difference of Squares Theorem

Suitable Grade Level

Grades 10-11