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Molodets [167]
3 years ago
6

Help Please.. Factor the following as the sum of two cubes. 8000 + a^3

Mathematics
1 answer:
vladimir2022 [97]3 years ago
7 0
Hello : 
8000 = 8 ×1000 = 2 ^3 ×10^3 = 20 ^3
note; identity    b^3 +a^3 = (a+b) (a²+b² - ab)
in this exercice : b=20  
so : 8000+b^3 = (a+20)(a²+400 - 20a).... <span>Factor the following</span>
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