Question

Find the value of x , log3 ( x² - 7 ) = 2

Answer 1

Answer:

The values of x are 4 and -4

Step-by-step explanation:

we have,

$\log_{3} {(x^2-7)} = 2 ~~~~( \because~ \log_a {b} = m \implies b = a^m)\\or, x^2 - 7= 3^2\\or, x^2-7 = 9\\or,x^2 = 16\\or,x =\pm4$