4b+c Найдите значение дроби при b=2, c=3...

nainly @nainly

July 2022 1 9 Report

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Упростите дробь: 16b²-24bc+9c2² / 4b+c
Найдите значение дроби при b=2, c=3

Answers & Comments

sumaya13q

Ответ:

$\frac{1}{11}$

ИЛИ

$0.(09)$

Объяснение:

$\frac{ {16b}^{2} - 24bc + {9c}^{2} }{4b + c} = \frac{ {(4b - 3c)}^{2} }{ 4b + c} = \frac{ {(4 \times 2 - 3 \times 3)}^{2} }{4 \times 2 + 3} = \frac{ {(8 - 9)}^{2} }{8 + 3} = \frac{1}{11} = 0.(09)$

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