anonymous
  • anonymous
(9-6x^9)^2 Multiply. I need more than a formula to help me. My class text gives me that, and it's still confusing. Using this problem, can someone help me step by step, so I can do the rest of the problems on my assignment? I am not looking for just the answer. I need to know how to do the problems. Thank you.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
because of the power of two, the expression can be written as (9-6x^9)*(9-6x^9). Then multiply by FOIL (First Outer Inner Last) method: (9*9)+(9*6x^9)+(6x^9*9)+[6*6*x^(9+9)] which can be further simplified to: 81+54x^9+54x^9+36x^18 81+108x^9+36x^18. Hope this helps.
anonymous
  • anonymous
This question is testing your knowledge of the distributive property and of exponent rules. That ^2 outside the parentheses is asking you "what is the result of multiplying (9-6x^9) (9-6x^9) ?" As halcyon_m says, FOIL is the method you use to multiply the term by itself.
anonymous
  • anonymous
Thank you very, very much. :) You both get a medal for your answers. :) I get really confused with math of all types, so it helps to have things explained in a simple manner, rather than the mathematical lingo used in most text books. Again, thank you. :)

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