Jawabanmu

2014-07-18T22:46:16+07:00
F(x) = 2-5+8x+3
f(x) = 8x

maka:
3f(-3) - [ (f(-2) ]²
3 ( 8.-3) - (8.-2)²
3 ( -24) - (-16)²
-72 - 256
= -328
2014-07-18T22:52:28+07:00
3 (2 - 5 + (8x-3) + 3) - [ 2 - 5 + (8x2) + 3] ^2
3(2 - 5 -24 + 3) - [2 -5 + 16+ 3]^2
-72 - [16]^2
-72 - 256
-328