Question

log2 (x²-5)=2 then find x.​

Answer 1

Answer:

x = 3

Step-by-step explanation:

log2 (x² - 5) = 2

we apply formula

log a^b = c

a^c = b

here

2² = x² - 5

4 = x² - 5

4 + 5 = x²

9 = x²

x² = 9

x = ✓9

x = 3

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