Question

log2(x^2-9)=4 please solve​

Answer 1

Answer:

x = 5,-5

Step-by-step explanation:

$log_{2}(x^2 - 9) = 4$

=> (x^2 - 9) = 4^2

=> x^2 - 9 = 16

=> x^2 = 16 + 9

=> x^2 = 25

=> x = 5, -5

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