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Anonymous Anonymous
  • 10-05-2014
  • Mathematics
Answered

multiplying polynomials

find the product

(2a-1)(8a-5)

Verified Answer :

Lilith
Lilith Lilith
  • 10-05-2014

\((2a-1)(8a-5)=2a\cdot 8a-2a\cdot 5-8a\cdot 1-5\cdot (-1)=\\ \\=16a^2-10a-8a+5=16a^2-18a +5\)


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tadvisohil886
tadvisohil886 tadvisohil886
  • 11-05-2014

(2a - 1) (8a - 5)

= {2a(8a - 5)} - {1(8a - 5)}

= 16a² - 10a - 8a + 5

= 16a² - 18a + 5

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