(4x2y3 + 2xy2 – 2y) – (–7x2y3 + 6xy2 – 2y)

2 min read Jun 16, 2024
(4x2y3 + 2xy2 – 2y) – (–7x2y3 + 6xy2 – 2y)

Simplifying Algebraic Expressions: (4x²y³ + 2xy² – 2y) – (–7x²y³ + 6xy² – 2y)

In algebra, simplifying expressions involves combining like terms to create a more concise representation. Let's break down the steps to simplify the expression: (4x²y³ + 2xy² – 2y) – (–7x²y³ + 6xy² – 2y).

1. Distributing the Negative Sign

The first step is to distribute the negative sign in front of the second set of parentheses:

(4x²y³ + 2xy² – 2y) + (7x²y³ – 6xy² + 2y)

2. Identifying Like Terms

Now, we identify terms that have the same variable and exponent combination. These are called like terms:

  • x²y³: 4x²y³ and 7x²y³
  • xy²: 2xy² and -6xy²
  • y: -2y and 2y

3. Combining Like Terms

We combine the coefficients of like terms while keeping the variables and exponents the same:

  • x²y³: 4x²y³ + 7x²y³ = 11x²y³
  • xy²: 2xy² - 6xy² = -4xy²
  • y: -2y + 2y = 0

4. The Simplified Expression

Finally, we put the combined terms together:

11x²y³ - 4xy²

Therefore, the simplified form of the expression (4x²y³ + 2xy² – 2y) – (–7x²y³ + 6xy² – 2y) is 11x²y³ - 4xy².

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