Math, asked by subhanjansaha561, 1 month ago

3x-y=5 then 8^x/2^y
please anybody tell me the answer of this​

Answers

Answered by aditisingh040506
0

Answer:

2¹²

Step-by-step explanation:

abac=ab−c

And

abc=ab∗c

8=23

So,

8x2y=23x2y

=23x−y

Since 3x-y = 12,

The answer is

2¹²

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Answered by harshitha202034
0

Step-by-step explanation:

 \frac{ {8}^{x} }{ {2}^{y} }  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \underline{ Note }: \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: * \:  \:  \: 8 =  {2}^{3}  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  * \:  \:  \: { ({a}^{m}) }^{n}  =  {(a)}^{m \times n}  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  * \:  \:  \: \frac{ {a}^{m} }{ {a}^{n} }  =  {(a)}^{m - n}  \\   \\ \frac{ {8}^{x} }{ {2}^{y} }  \\  = \frac{ { ({2}^{3}) }^{x} }{ {2}^{y} }  \\  =  \frac{ {2}^{3x} }{ {2}^{y} }  \\    = {(2)}^{3x - y}  \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \underline{ Note }:  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  * \:  \:  \:Given \:  \: 3x - y = 5 \\ \\  = {(2)}^{3x - y}  \\  = \underline {\underline{  {2}^{5} }}

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