Question

log3 x+log3 (x+30)=log3 64

Answer 1

Answer:

x = 2

Step-by-step explanation:

$log_{3}x(x+ 30) = log_{3}64 \\ x(x + 30) = 64 \\ {x}^{2} + 30x - 64 = 0 \\ x = 2 \: or \: x = - 32$

-32 is rejected because in logarithms you cannot use negative value so x=2