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Giai he phuong trinh bang phuong phap cong va phuong phap the
<=> \(\left\{{}\begin{matrix}4x+3x=-6\\\dfrac{x+3y}{3}-\dfrac{y-2}{5}=1\end{matrix}\right.\)
giai phuong trinh \(x^4-2x^3+4x^2-3x-4=0\)
giai phuong trinh
4x2+\(\sqrt{3x+1}\)+5=13x
Giai phuong trinh
4x^3+8x^2+9x-15=0
giai phuong trinh
x*(2x+3)2 -4x2+9=0
\(x-\sqrt{x-3}-5=0\)
\(x^3-4x^2-3x+6=0\)
\(3x^3+4x^2-5x-6=0\)
\(\sqrt{x^2+4x+8}+\sqrt{x^2+4x+4}=\sqrt{2\cdot\left(x^2+4x+6\right)}\)
\(x^2-3x+\sqrt{x+5}-\sqrt{10-4x}=-2\)
Giai phuong trinh
GIAI PHUONG TRINH:
\(2\left(\sqrt{\frac{x-1}{4}-3}\right)=2\sqrt{\frac{4x-4}{9}}-\frac{1}{3}\)
Giai Phuong trinh \(x^4=3x^2+4x-\frac{24}{7}\)
giai phuong trinh:\(\sqrt{4x^2+5x+1}\) -2\(\sqrt{x^2-x-1}\)=3-9x