J (2 ) = 3x - x.Find f'(x ) by selecting 8 of the following. Choose from these sentences: Your Proof: 6x - 1 limp-+0 h(3h+6x-1) limp +0 3x2+2xh+h2-x-h-(3x2-x) h limp 3h +6ah-h-2x h 3h2+6xch-h h limp-+0 3h+6h-1 h limn-0 - 3x2+6xch+3h2-x-h-(3x2-x) h limp-+0 3(x2+ 2ach+h2)-x-h-(3a2-x) h limp +0 3h + 6x - 1 limp 3(ath)2-ath+(32-2) h 6x limp 6ch+3h2-h h limn-+0 3(x2 +h2)-2-h-(3a2-2) h limn ->0 f(ath ) - f(2) h limp -2 f(ath) - f(2 ) h 3(x th)2-x-h-(3x2-x)