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The polynomial 
p(x)=x^(3)+7x^(2)-36 has a known factor of 
(x+3).
Rewrite 
p(x) as a product of linear factors.

p(x)=

The polynomial p(x)=x3+7x236 p(x)=x^{3}+7 x^{2}-36 has a known factor of (x+3) (x+3) .\newlineRewrite p(x) p(x) as a product of linear factors.\newlinep(x)= p(x)=

Full solution

Q. The polynomial p(x)=x3+7x236 p(x)=x^{3}+7 x^{2}-36 has a known factor of (x+3) (x+3) .\newlineRewrite p(x) p(x) as a product of linear factors.\newlinep(x)= p(x)=
  1. Factor Finding: Since we know that (x+3)(x + 3) is a factor of p(x)p(x), we can perform polynomial long division or synthetic division to divide p(x)p(x) by (x+3)(x + 3) to find the other factors.
  2. Synthetic Division Setup: Let's use synthetic division to divide p(x)p(x) by (x+3)(x + 3). We set up the synthetic division with 3-3 (the zero of the factor x+3x + 3) and the coefficients of p(x)p(x): 11 (for x3x^3), 77 (for x2x^2), 00 (for (x+3)(x + 3)00, since there is no (x+3)(x + 3)00 term), and (x+3)(x + 3)22 (constant term).
  3. Performing Synthetic Division: Performing synthetic division, we bring down the leading coefficient 11 and then multiply it by (-3\) to get (-3\), which we add to the next coefficient 77 to get 44. We then multiply 44 by (-3\) to get (-12\), which we add to the next coefficient 00 to get (-12\). Finally, we multiply (-12\) by (-3\) to get 3636, which we add to the last coefficient \-36 to get 00, confirming that x+3x + 3 is indeed a factor.
  4. Confirmation of Factor: The result of the synthetic division gives us the quotient polynomial q(x)=x2+4x12q(x) = x^2 + 4x - 12. Now we need to factor q(x)q(x) to find the remaining linear factors of p(x)p(x).
  5. Factoring the Quotient Polynomial: We look for two numbers that multiply to 12-12 and add to 44. These numbers are 66 and 2-2. Therefore, we can factor q(x)q(x) as (x+6)(x2)(x + 6)(x - 2).
  6. Writing the Polynomial as a Product: Now we can write p(x)p(x) as a product of its linear factors: p(x)=(x+3)(x+6)(x2)p(x) = (x + 3)(x + 6)(x - 2).

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