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18.07.2019 •
Mathematics
Complete the square to determine the maximum or minimum value of the function defined by the expression. x2 + 30x + 21 a) maximum value at 15 b) maximum value at 30 c) maximum value at −15 d) minimum value at −204
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Ответ:
= ( x + 15)^2 - 225 + 21
= (x + 15)^2 - 204
Its D minimum at -204
Ответ:
Step-by-step explanation:
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