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Please help me and we should use laws of exponents​

Please help me and we should use laws of exponents​-example-1
User MasterHD
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Answer:

3.b


((8)/(3))^(2x+1) *((8)/(3))^(5) =((8)/(3)) ^(x+2)\\\\((8)/(3))^(2x+1 +5) =((8)/(3)) ^(x+2)\\\\\\2x +6 = x+2\\x = -4

i hope question 3.a. is 5^x ÷ 5^-3 = 5^5

3.a.


(5^x)/(5^(-3)) = 5^5\\\\5^ {x+3} = 5^5\\\\x+3 = 5\\x =2

User Kux
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