Toán Lớp 10: Giải phương trình
(x^2-3x+2)*√x-3
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Toán Lớp 10: Giải phương trình
(x^2-3x+2)*√x-3
Comments ( 2 )
<=> (x^2 – x – 2x + 2)(x – 3) = 0
<=> [x(x – 1) – 2(x – 1)]. (x – 3) = 0
<=> (x – 1)(x – 2)(x – 3) = 0
<=> [x – 1 = 0 <=> [x = 1
[x – 2 = 0 [x = 2
[x – 3 = 0 [x = 3
= pt có 3 nghiệm pb: x = {1; 2; 3}