Which of the following values of z will satisfy log3 = 1?

Which of the following values of z will satisfy log3 = 1? Correct Answer = 1? ] 9, -5

Given, log3 = 1 ➩ log2 (z2 – 4z – 37) = 3 ➩ (z2 – 4z – 37) = 8 ➩ z2 – 4z – 37 – 8 = 0 ➩ z2 – 4z – 45 = 0 ➩ z2 – 9z + 5z – 45 = 0 ➩ (z – 9) (z + 5) = 0 ➩ z = 9, – 5
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