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Factor completely:

r^(9)-z^(9)
Answer:

Factor completely:\newliner9z9 r^{9}-z^{9} \newlineAnswer:

Full solution

Q. Factor completely:\newliner9z9 r^{9}-z^{9} \newlineAnswer:
  1. Identify Expression Type: Step Title: Identify the Type of Expression\newlineConcise Step Description: Recognize that the expression is a difference of two powers.\newlineStep Calculation: The expression is r9z9r^{9} - z^{9}, which is a difference of two ninth powers.
  2. Apply Squares Formula: Step Title: Apply the Difference of Two Squares Formula\newlineConcise Step Description: Use the difference of two squares formula, a2b2=(a+b)(ab)a^2 - b^2 = (a + b)(a - b), to factor the expression.\newlineStep Calculation: The expression can be written as (r92)2(z92)2(r^{\frac{9}{2}})^2 - (z^{\frac{9}{2}})^2, which is a difference of squares.
  3. Factor Using Cubes Formulas: Step Title: Factor Using the Sum and Difference of Cubes Formulas\newlineConcise Step Description: Recognize that the expression can be further factored using the sum and difference of cubes formulas, a3b3=(ab)(a2+ab+b2)a^3 - b^3 = (a - b)(a^2 + ab + b^2) and a3+b3=(a+b)(a2ab+b2)a^3 + b^3 = (a + b)(a^2 - ab + b^2).\newlineStep Calculation: The expression (r(9/2))2(z(9/2))2(r^{(9/2)})^2 - (z^{(9/2)})^2 can be factored as (r(9/2)z(9/2))(r(9/2)+z(9/2))(r^{(9/2)} - z^{(9/2)})(r^{(9/2)} + z^{(9/2)}).
  4. Recognize Difference of Cubes: Step Title: Recognize the Difference of Cubes\newlineConcise Step Description: Notice that r9/2z9/2r^{9/2} - z^{9/2} is a difference of cubes, as (r3)3(z3)3(r^{3})^3 - (z^{3})^3.\newlineStep Calculation: Factor r9/2z9/2r^{9/2} - z^{9/2} using the difference of cubes formula to get (r3z3)(r6+r3z3+z6)(r^3 - z^3)(r^6 + r^3z^3 + z^6).
  5. Factor Cubes Completely: Step Title: Factor the Difference of Cubes Completely\newlineConcise Step Description: Factor r3z3r^3 - z^3 completely using the difference of cubes formula.\newlineStep Calculation: Factor r3z3r^3 - z^3 to get (rz)(r2+rz+z2)(r - z)(r^2 + rz + z^2).
  6. Combine All Factors: Step Title: Combine All Factors\newlineConcise Step Description: Combine all the factors obtained from the previous steps to write the final factored form of the original expression.\newlineStep Calculation: The final factored form is (rz)(r2+rz+z2)(r3+z3)(r3z3)(r - z)(r^2 + rz + z^2)(r^3 + z^3)(r^3 - z^3).