A

1003189106

Level: 
A
Given \( x\in\mathbb{R} \), find the solution set of the following equation. \[ 2x^4+x^3+2x^2+x=0 \] Hint: Decompose the polynomial on the left side of the equation into factors.
\( \left\{-\frac12,0\right\} \)
\( \{-1,0\} \)
\( \left\{-1,0,\frac12,1\right\} \)
\( \left\{-\frac{\sqrt2}2,0,1,\frac{\sqrt2}2\right\} \)

1103171405

Level: 
A
Choose the true statement.
The given points do not lay on the graph of a linear function.
The given points lay on the graph of the linear function \( f(x)=-x+3 \).
The given points lay on the graph of the linear function \( f(x)=-x+3.5 \).
The given points lay on the graph of the linear function \( f(x)=x+3 \).