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Solve the equation by factoring:

x^(3)-8x^(2)-9x=0
Answer: 
x=

Solve the equation by factoring:\newlinex38x29x=0 x^{3}-8 x^{2}-9 x=0 \newlineAnswer: x= x=

Full solution

Q. Solve the equation by factoring:\newlinex38x29x=0 x^{3}-8 x^{2}-9 x=0 \newlineAnswer: x= x=
  1. Factor GCF: Factor out the greatest common factor (GCF) from the equation x38x29x=0x^3 - 8x^2 - 9x = 0. The GCF is xx, so we factor it out to get x(x28x9)=0x(x^2 - 8x - 9) = 0.
  2. Factor Quadratic Equation: Now we need to factor the quadratic equation x28x9x^2 - 8x - 9. We look for two numbers that multiply to 9-9 and add up to 8-8. The numbers are 9-9 and +1+1. So we can write the quadratic as (x9)(x+1)(x - 9)(x + 1).
  3. Find Roots: Now we have the factored form of the equation: x(x9)(x+1)=0x(x - 9)(x + 1) = 0. To find the roots, we set each factor equal to zero and solve for xx.
  4. First Root: Set the first factor equal to zero: x=0x = 0. This gives us the first root.
  5. Second Root: Set the second factor equal to zero: x9=0x - 9 = 0. Solving for xx gives us x=9x = 9, which is the second root.
  6. Third Root: Set the third factor equal to zero: x+1=0x + 1 = 0. Solving for xx gives us x=1x = -1, which is the third root.

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