Jawabanmu

2014-08-20T21:13:43+07:00
F(4) = (7X4)-1 = 28-1 =27 ,, F(-9) = (7X-9)-1 = -63-1= -64
f(4) : 7(4)-1= 28-1 =27 f(-9)= 7(-9)-1 = -63 - 1 = -64 f(4)+f(-9)= 27 + -64 = -37
2014-08-20T22:00:10+07:00
F(x)= 7x-1
f(4)= 7.4-1= 28-1=27
f(-9)=7.-9-1=-63-1=-64
jadi f(4)+f(-9)= 27-64=-37