The problem
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I don’t understand what I am doing incorrectly
Answer provided by our tutors
You have probably copy pasted the partial expression from elsewhere into the colver.
We recommend typing in the equation/expression following the Math expression entry rules located here.
If you want to solve an equation, you need to type an equation (type value after "=" sign)
If you want to factor or simplify an expression you should not put "=" at the end.