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Factor completely:

9u^(4)-22u^(2)w^(2)+13w^(4)
Answer:

Factor completely:\newline9u422u2w2+13w4 9 u^{4}-22 u^{2} w^{2}+13 w^{4} \newlineAnswer:

Full solution

Q. Factor completely:\newline9u422u2w2+13w4 9 u^{4}-22 u^{2} w^{2}+13 w^{4} \newlineAnswer:
  1. Identify Quadratic Form: Identify the polynomial as a quadratic in form with respect to u2u^2. The polynomial 9u422u2w2+13w49u^{4}-22u^{2}w^{2}+13w^{4} can be treated as a quadratic in u2u^2, where u2u^2 is the variable and 99, 22w2-22w^2, and 13w413w^4 are the coefficients.
  2. Find Multiplying Numbers: Look for two numbers that multiply to 9×13w49 \times 13w^4 and add to 22w2-22w^2. We need to find two numbers that when multiplied give us 9×13w4=117w49 \times 13w^4 = 117w^4 and when added give us 22w2-22w^2. These numbers are 9w2-9w^2 and 13w2-13w^2.
  3. Write Four-Term Expression: Write the polynomial as a four-term expression using the numbers found.\newlineWe can express the polynomial as 9u49u2w213u2w2+13w49u^{4} - 9u^{2}w^{2} - 13u^{2}w^{2} + 13w^{4}.
  4. Factor by Grouping: Factor by grouping.\newlineWe group the terms as 9u49u2w29u^{4} - 9u^2w^2 and 13u2w2+13w4 -13u^2w^2 + 13w^4 and factor out the common factors from each group.
  5. Factor Common Factors: Factor out the common factors from each group.\newlineFrom the first group 9u49u2w29u^{4} - 9u^2w^2, we factor out 9u29u^2, and from the second group 13u2w2+13w4-13u^2w^2 + 13w^4, we factor out 13w2-13w^2.\newlineThis gives us 9u2(u2w2)13w2(u2w2)9u^2(u^2 - w^2) - 13w^2(u^2 - w^2).
  6. Factor Common Binomial: Factor out the common binomial factor.\newlineWe notice that u2w2u^2 - w^2 is a common factor in both terms, so we factor it out to get u2w2u^2 - w^29u213w29u^2 - 13w^2.
  7. Recognize Difference of Squares: Recognize that u2w2u^2 - w^2 is a difference of squares.\newlineThe expression u2w2u^2 - w^2 is a difference of squares and can be factored further into (u+w)(uw)(u + w)(u - w).
  8. Write Final Factorization: Write the final factorization.\newlineThe complete factorization of the polynomial is (u+w)(uw)(9u213w2)(u + w)(u - w)(9u^2 - 13w^2).

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