anonymous
  • anonymous
factor:64x^3+125
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
(a^3+b^3)=(a+b)(a^2-ab+b^3)
anonymous
  • anonymous
how is that factored? THat does not give the answer.
anonymous
  • anonymous
64x^3 = (4x)^3 125 = 5^3 I'm sure you can do the rest yourself

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anonymous
  • anonymous
i do not get how to do it thats why im asking
anonymous
  • anonymous
Let a = 4x b = 5
anonymous
  • anonymous
would it be (4x-5)(x2-5x+25)?
anonymous
  • anonymous
a^2 = (4x)^2 = 16x^2 (a isn't on the x term, it is 4x) ab = 20x b^2= 25 (just noticed theres a typo, it is (a+b)(a^2-ab+b^2)) Therefore it is actually (4x+5)(16x^2-20x+25)
anonymous
  • anonymous
Edit: (a isn't only the x term, it is 4x)

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