miacorners
miacorners
23-04-2017
Mathematics
contestada
7^x^2=9^x
how do I solve this using logs
Respuesta :
Aishani
Aishani
23-04-2017
Apply lg on both sides.
lg7^x^2 = lg9^x
Bring the power forward.
x^2lg7 = xlg9
x^2/x = lg9/lg7
x = lg9/lg7 = 1.13
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