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Mathematics
Karma Hunt
25 June, 21:34
If 3^x = 5, then 3^2x+3 = ?
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Dominic Merritt
26 June, 01:24
0
Answer:28
Step-by-step explanation:
3^x=5
3^2x+3
(3^x) ^2 + 3
Substitute 3^x=5 in (3^x) ^2 + 3
5^2 + 3
5x5+3=28
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