Giải phương trình, hệ phương trình sau:
a) \(3{{x}^{2}}-10x+3=0\) c) \({{x}^{4}}-{{x}^{2}}-12=0\)
b) \(\left\{ \begin{align} & 3x+2y=1 \\ & 4x-3y=41 \\ \end{align} \right.\) d) \(x-\sqrt{x+1}=1\)
A.a) \(x=3,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
B.a) \(x=3,x=\frac{2}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
C.a) \(x=3,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 6;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
D.a) \(x=4,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=8\).
a) \(3{{x}^{2}}-10x+3=0\) c) \({{x}^{4}}-{{x}^{2}}-12=0\)
b) \(\left\{ \begin{align} & 3x+2y=1 \\ & 4x-3y=41 \\ \end{align} \right.\) d) \(x-\sqrt{x+1}=1\)
A.a) \(x=3,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
B.a) \(x=3,x=\frac{2}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
C.a) \(x=3,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 6;-7 \right)\).
c) \(x=\pm 2\). d) \(x=3\).
D.a) \(x=4,x=\frac{1}{3}\). b) \(\left( x;y \right)=\left( 5;-7 \right)\).
c) \(x=\pm 2\). d) \(x=8\).
Loga
Hóa Học lớp 12
