Answer all the questions below and press submit to see how many you got right.
Expression : An expression is a succession of constants, variables and mathematical operations that if evaluated for specific values of the variables represents a number.
Squared : $x$ squared refers to the number $x^2=x\cdot x.$ For example 3 squared equals 9.
Variable : A letter in an expression or function that represents an arbitrary number.
$2x^2+4x-2=?$ for $x=-5$.
$-3x^2+1x+4=?$ for $x=0$.
Hundred : Hundred refers to the number 100.
$4x^2-1x+3=?$ for $x=5$.