(2x-1)(x-1)(x-3)(2x+3)+9

3 min read Jun 16, 2024
(2x-1)(x-1)(x-3)(2x+3)+9

Factoring and Simplifying the Expression (2x-1)(x-1)(x-3)(2x+3)+9

This article explores the process of factoring and simplifying the expression (2x-1)(x-1)(x-3)(2x+3)+9. We'll break down the steps to achieve a simplified form of the expression.

Step 1: Expanding the Expression

The first step is to expand the given expression by multiplying the factors together.

  • Multiply the first two factors: (2x-1)(x-1) = 2x² - 3x + 1

  • Multiply the next two factors: (x-3)(2x+3) = 2x² - 3x - 9

  • Now multiply the results from above: (2x² - 3x + 1)(2x² - 3x - 9) = 4x⁴ - 12x³ - 13x² + 27x + 9

  • Finally, add the constant term: 4x⁴ - 12x³ - 13x² + 27x + 9 + 9 = 4x⁴ - 12x³ - 13x² + 27x + 18

Step 2: Factoring the Simplified Expression

The simplified expression, 4x⁴ - 12x³ - 13x² + 27x + 18, can be factored further.

  • Grouping: We can group the terms to find a common factor: (4x⁴ - 12x³) + (-13x² + 27x) + 18

  • Factoring out common factors: 4x³(x - 3) - x(13x - 27) + 18

  • Recognizing a pattern: Notice that the terms in parentheses are similar. We can rewrite the expression as: 4x³(x - 3) - (13x - 27)x + 18

  • Factoring by grouping: Now we can factor out (x - 3) and (13x - 27): (x - 3)(4x³ - x) + 18

  • Further factoring: x(x - 3)(4x² - 1) + 18

  • Final factorization: (x - 3)(4x² - 1)(x) + 18

Final Result

The fully factored and simplified form of the expression (2x-1)(x-1)(x-3)(2x+3)+9 is (x - 3)(4x² - 1)(x) + 18.

This demonstrates the steps involved in factoring and simplifying complex expressions through multiplication, grouping, and recognizing common patterns.

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