Penjelasan dengan langkah-langkah:
f(x) = 35 + 2x - x²
f(h)=35 +2(h)-h²=20
35+2h-h²=20
h²-2h-15=0
(h-5)(h+3)=0
h=5. atau h= -3
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Penjelasan dengan langkah-langkah:
f(x) = 35 + 2x - x²
f(h)=35 +2(h)-h²=20
35+2h-h²=20
h²-2h-15=0
(h-5)(h+3)=0
h=5. atau h= -3