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Harga Nol :
Pembilang :
X + 5 = 0 <=> x = -5
x - 2 = 0 <=> x = 2
Penyebut :
x + 2 = 0 <=> x = -2
x - 4 = 0 <=> x = 4
Jadi HP { -5 ≤ X < -2 atau 2 ≤ X < 4}
semoga bermanfaat
yang atas +++++++(-5)-----------------------(2)+++++++++++++++
ybawah +++++++++++++(-2)-------------------------(4)++++++++
hasil. ++++++++(-5)-----(-2)+++++++(2)---------(4)++++++++
-5<=x<-2 2<=x<4