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[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
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X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
X ^ 4 - 28 X ^2 +192 = 0

tim nghiem
:eek::eek::eek::eek::eek::eek:
 
N

nguyenso2

lần sau đừng gõ nhiều như vậy, spam đó:
x^4-28x^2+192=0
=> (x^2-14)^2-4=0
=> (x^2-14-2)(x^2-14+2)=0
=> (x^2-16)(x^2-12)=0
tự suy đoạn sau nhé
 
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