joselyn84
joselyn84
03-07-2018
Mathematics
contestada
find the product
(a+4b)(2a-b)
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choixongdong
choixongdong
03-07-2018
(a+4b)(2a-b)
Using FOIL
= 2a^2 -ab + 8ab - 4b^2
= 2a^2 + 7ab - 4b^2
hope it helps
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