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Rewrite the expression as a product of four linear factors:

(3x^(2)-5x)^(2)-20(3x^(2)-5x)+96
Answer:

Rewrite the expression as a product of four linear factors:\newline(3x25x)220(3x25x)+96 \left(3 x^{2}-5 x\right)^{2}-20\left(3 x^{2}-5 x\right)+96 \newlineAnswer:

Full solution

Q. Rewrite the expression as a product of four linear factors:\newline(3x25x)220(3x25x)+96 \left(3 x^{2}-5 x\right)^{2}-20\left(3 x^{2}-5 x\right)+96 \newlineAnswer:
  1. Identify Given Expression: Identify the given expression and recognize that it resembles a quadratic in form, where the quadratic term is (3x25x)2(3x^2 - 5x)^2, the linear term is 20(3x25x)-20(3x^2 - 5x), and the constant term is +96+96. We can treat 3x25x3x^2 - 5x as a single variable, say uu, and rewrite the expression as a quadratic in terms of uu.\newlineLet u=3x25xu = 3x^2 - 5x. Then the expression becomes u220u+96u^2 - 20u + 96.
  2. Factor Quadratic Expression: Factor the quadratic expression u220u+96u^2 - 20u + 96. We are looking for two numbers that multiply to 9696 and add up to 20-20. These numbers are 12-12 and 8-8, since 12×8=96-12 \times -8 = 96 and 12+8=20-12 + -8 = -20.\newlineSo, u220u+96u^2 - 20u + 96 factors to (u12)(u8)(u - 12)(u - 8).
  3. Substitute Back and Expand: Substitute back 3x25x3x^2 - 5x for uu in the factored form.\newlineWe get (3x25x12)(3x25x8)(3x^2 - 5x - 12)(3x^2 - 5x - 8).
  4. Factor First Quadratic: Now, we need to factor each quadratic expression (3x25x12)(3x^2 - 5x - 12) and (3x25x8)(3x^2 - 5x - 8) into two linear factors.\newlineStarting with (3x25x12)(3x^2 - 5x - 12), we look for two numbers that multiply to 3×12=363 \times -12 = -36 and add up to 5-5. These numbers are 9-9 and +4+4, since 9×4=36-9 \times 4 = -36 and 9+4=5-9 + 4 = -5.\newlineSo, 3x25x123x^2 - 5x - 12 factors to (3x25x8)(3x^2 - 5x - 8)00.
  5. Factor Second Quadratic: Next, factor (3x25x8)(3x^2 - 5x - 8). We look for two numbers that multiply to 3×8=243 \times -8 = -24 and add up to 5-5. These numbers are 6-6 and +1+1, since 6×1=24-6 \times 1 = -24 and 6+1=5-6 + 1 = -5.\newlineSo, 3x25x83x^2 - 5x - 8 factors to (3x+1)(x8)(3x + 1)(x - 8).
  6. Combine Linear Factors: Combine the linear factors from the previous steps to express the original expression as a product of four linear factors.\newlineThe final factored form is (3x+4)(x3)(3x+1)(x8)(3x + 4)(x - 3)(3x + 1)(x - 8).

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