(2x-3)4x-(5x-1)(x+3)

2 min read Jun 16, 2024
(2x-3)4x-(5x-1)(x+3)

Expanding and Simplifying the Expression (2x-3)4x-(5x-1)(x+3)

This article explores the process of expanding and simplifying the given algebraic expression: (2x-3)4x-(5x-1)(x+3).

Expanding the Expression

We begin by applying the distributive property to both parts of the expression:

  • (2x-3)4x: Multiplying each term within the parentheses by 4x, we get:

    • 2x * 4x = 8x²
    • -3 * 4x = -12x
    • (2x-3)4x = 8x² - 12x
  • (5x-1)(x+3): We expand this product using the FOIL method (First, Outer, Inner, Last):

    • 5x * x = 5x²
    • 5x * 3 = 15x
    • -1 * x = -x
    • -1 * 3 = -3
    • (5x-1)(x+3) = 5x² + 14x - 3

Combining the Expanded Terms

Now, we have the following: (2x-3)4x-(5x-1)(x+3) = 8x² - 12x - (5x² + 14x - 3)

Finally, we simplify by distributing the negative sign and combining like terms:

  • 8x² - 12x - 5x² - 14x + 3
  • (8x² - 5x²) + (-12x - 14x) + 3
  • 3x² - 26x + 3

Conclusion

By expanding and simplifying the expression (2x-3)4x-(5x-1)(x+3), we arrive at the simplified form 3x² - 26x + 3. This process demonstrates the importance of applying distributive property and combining like terms for algebraic simplification.

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