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Rewrite the expression as a product of four linear factors:

(2x^(2)-13 x)^(2)-(2x^(2)-13 x)-42
Answer:

Rewrite the expression as a product of four linear factors:\newline(2x213x)2(2x213x)42 \left(2 x^{2}-13 x\right)^{2}-\left(2 x^{2}-13 x\right)-42 \newlineAnswer:

Full solution

Q. Rewrite the expression as a product of four linear factors:\newline(2x213x)2(2x213x)42 \left(2 x^{2}-13 x\right)^{2}-\left(2 x^{2}-13 x\right)-42 \newlineAnswer:
  1. Identify Expression: Let's first identify the expression we need to factor:\newline(2x213x)2(2x213x)42(2x^2 - 13x)^2 - (2x^2 - 13x) - 42\newlineNotice that this expression is a quadratic in form, where (2x213x)(2x^2 - 13x) is playing the role of a single variable. Let's substitute u=(2x213x)u = (2x^2 - 13x) to simplify the expression.
  2. Substitute and Simplify: Substitute uu into the expression to get a quadratic in terms of uu:u2u42u^2 - u - 42Now, we need to factor this quadratic expression.
  3. Factor Quadratic Expression: To factor the quadratic expression u2u42u^2 - u - 42, we look for two numbers that multiply to 42-42 and add up to 1-1. These numbers are 7-7 and 66. So, we can write the quadratic as: (u7)(u+6)(u - 7)(u + 6)
  4. Find Factors: Now, we need to substitute back (2x213x)(2x^2 - 13x) for uu in each factor:\newline(2x213x7)(2x213x+6)(2x^2 - 13x - 7)(2x^2 - 13x + 6)\newlineNext, we need to factor each quadratic expression further.
  5. Substitute Back and Factor: Let's start with the first quadratic expression:\newline2x213x72x^2 - 13x - 7\newlineWe need to find two numbers that multiply to 2(7)=142*(-7) = -14 and add up to 13-13. These numbers are 14-14 and 11.\newlineHowever, since the coefficient of x2x^2 is 22, we need to use the AC method or other factoring techniques to factor this expression. Let's check if it can be factored easily.
  6. Factor First Quadratic: Upon attempting to factor 2x213x72x^2 - 13x - 7, we find that it does not factor nicely into linear factors with integer coefficients. This means we have made a mistake, as the original problem asks for a product of four linear factors. We need to re-evaluate our approach to factoring the quadratic expressions.

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