[toán 12]giải hệ pt

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nguyenbahiep1

latex.php

từ hệ 1

[laTEX]y = (x- \frac{5}{2})^2-1 \\ \\ \Rightarrow (x- \frac{5}{2})^2 -1 + 2(x-3) \sqrt{x+1} = - \frac{3}{4} \\ \\ (x-2)(x-3) + 2(x-3).\sqrt{x+1} = 0 \\ \\ TH_1 : x = 3, y = - \frac{3}{4} \\ \\ TH_2: x = 0 , y = \frac{21}{4}[/laTEX]
 
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