Mathematics: Solve exponential equations 5x − 2=625

Solve exponential equations 5x − 2=625 - id526251525471, crayons18

Ответ:

zuleymi

15.03.2022

x = 6

Step-by-step explanation:

$5^{x-2}=625\\\\5^{x-2}=5^4\qquad(5^4=5\cdot5\cdot5\cdot5=625)\\\\5^{x-2}=5^4\Rightarrow x-2=4\qquad\text{add 2 to both sides}\\\\x-2+2=4+2\\\\x=6\\\\\text{check:}\\\\5^{6-2}=5^4=625\qquad\bold{CORRECT}$

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Ответ:

OlamideO3

15.10.2022

Mathematics

D. x=6 y=36, x=9 y=54, x=12 y=72

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Solve exponential equations
5x − 2=625

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