Warm Up
Examine the four expressions below. Which one doesn't belong?
A.
B.
C.
D.
There are many possible answers for which equation does not belong in a group with the others. Determine which equation you think should be eliminated and explain your reasoning.
Compare your answer:
Equation A: The only expression that is not in standard form. Or, when written in standard form, it is the only one that has an even number for the constant term.
Equation B: The only expression in standard form that has a leading coefficient other than 1.
Equation C: The only expression in standard form that doesn't have three terms. It is the only one without a linear term.
Equation D: The only expression in standard form that can't be written in factored form. It is prime.