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Factor completely:

40 x-2x^(2)-2x^(3)
Answer:

Factor completely:\newline40x2x22x3 40 x-2 x^{2}-2 x^{3} \newlineAnswer:

Full solution

Q. Factor completely:\newline40x2x22x3 40 x-2 x^{2}-2 x^{3} \newlineAnswer:
  1. Identify Common Factor: First, we identify the common factor in all terms of the polynomial 40x2x22x340x - 2x^2 - 2x^3. The common factor is 2x2x, as it is the greatest common factor that can be divided evenly into each term.
  2. Factor Out Common Factor: Next, we factor out the common factor 2x2x from each term of the polynomial.\newline2x(20xx2)2x(20 - x - x^2)
  3. Rearrange Terms: We notice that the order of the terms inside the parentheses is not standard. We should rearrange the terms in descending order of the powers of xx. \newline2x(x2x+20)2x(-x^2 - x + 20)
  4. Factor Quadratic Expression: Now, we look to factor the quadratic expression inside the parentheses. We need two numbers that multiply to 20-20 (the constant term) and add up to 1-1 (the coefficient of the middle term).\newlineThe numbers that satisfy these conditions are 5-5 and 44.
  5. Split Middle Term: We factor the quadratic expression by splitting the middle term using the numbers 5-5 and 44.\newline2x(x25x+4x+20)2x(-x^2 - 5x + 4x + 20)
  6. Factor by Grouping: Next, we group the terms in pairs and factor by grouping. 2x[(x25x)+(4x+20)]2x[(-x^2 - 5x) + (4x + 20)]
  7. Factor Out Common Factor: We factor out the common factor from each group. 2x[x(x+5)+4(x+5)]2x[-x(x + 5) + 4(x + 5)]
  8. Factor Out Common Factor: We notice that (x+5)(x + 5) is a common factor in both groups, so we factor it out.2x(x+5)(x+4)2x(x + 5)(-x + 4)
  9. Write Completely Factored Form: Finally, we write the completely factored form of the polynomial, ensuring that all signs are correct.\newline2x(x+5)(x+4)2x(x + 5)(-x + 4) is the completely factored form of the polynomial.

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