16.(x²-1)/(x+1) = (x-1)(x+1)/(x+1)
= x-1 <== masukkan x = -1
= -2
17. (t²-5t+6)/(t-2) = (t-3)(t-2)/(t-2)
= t-3 <= masukkan t = 2
= -1
18.(t²-4)/(t²-3t+2) = (t-2)(t+2)/(t-1)(t-2)
= (t+2)/(t-1) <= masukkan t = 2
= 4
19. (x-9)/(√x - 3) = (x-9)/(√x - 3) . (√x + 3)/(√x + 3)
= (x-9)(√x + 3)/(x-9)
= √x + 3 <= masukkan x = 9
= 6
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16.(x²-1)/(x+1) = (x-1)(x+1)/(x+1)
= x-1 <== masukkan x = -1
= -2
17. (t²-5t+6)/(t-2) = (t-3)(t-2)/(t-2)
= t-3 <= masukkan t = 2
= -1
18.(t²-4)/(t²-3t+2) = (t-2)(t+2)/(t-1)(t-2)
= (t+2)/(t-1) <= masukkan t = 2
= 4
19. (x-9)/(√x - 3) = (x-9)/(√x - 3) . (√x + 3)/(√x + 3)
= (x-9)(√x + 3)/(x-9)
= √x + 3 <= masukkan x = 9
= 6