(log a)²+ log a =6 tolong dong penyelesaiannya
(log a)²+ log a = 6
(log a)²+ log a – 6 = 0 —> misal log a = x
x²+ x – 6 = 0
(x+3)(x-2) = 0
x = -3 atau x = 2
log a = -3 —-> a = 10^-3
atau
log a = 2 —–> a = 10^2
(log a)²+ log a =6 tolong dong penyelesaiannya
(log a)²+ log a = 6
(log a)²+ log a – 6 = 0 —> misal log a = x
x²+ x – 6 = 0
(x+3)(x-2) = 0
x = -3 atau x = 2
log a = -3 —-> a = 10^-3
atau
log a = 2 —–> a = 10^2