tentukan hp persamaan 4log(x2+2x-14)=7log(x2+2x-14)

LOgaritma

4'log (x² + 2x - 14) = 7'log (x² + 2x - 14)

x² + 2x - 14 = 1
x² + 2x - 14 - 1 = 0
(x + 5)(x - 3) = 0
x = -5 atau x = 3

HP = {-5 , 3}