Toán Lớp 8: tìm x biết
a, x² – 8x = 0
b, x² – 12x = -36
c, x² – 4x + 4 = 9
d, (2x+1)² – 4x.(x+3) = 9
giúp mình với ạ
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Toán Lớp 8: tìm x biết
a, x² – 8x = 0
b, x² – 12x = -36
c, x² – 4x + 4 = 9
d, (2x+1)² – 4x.(x+3) = 9
giúp mình với ạ
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