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Expand the function. f(x)=(x + 7)^3
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5 votes
Expand the function. f(x)=(x + 7)^3

User Marius Gedminas
by
8.5k points

1 Answer

2 votes

Answer:


f(x) = {x}^(3) + 21 {x}^(2) + 147x + 343

Explanation:


(x + 7 {)}^(3)


{x}^(3) + 3 {x}^(2) * 7 + 3x * {7}^(2) + {7}^(3)


{x}^(3) + {x}^(2) * 7 + 3x * 49 + 343


{x}^(3) + 21 {x}^(2) + 147x + 343

Therefore:


f(x) = {x}^(3) + 21 {x}^(2) + 147x + 343

User Obgnaw
by
7.7k points
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