Frequent Questions about our Solver

The problem

Click to see the original problem

Why isn't this being solved?

Answer provided by our tutors

First of all you have typed and expression in the 'Solve' tab:

If you want to simplify an expression you must first select 'Simplify' tab (next to 'Solve'), type the expression and click on 'Solve' on the right hand side:

The expression (t - 4) does not divide t^4 - t^3 - 14t^2 + 7t - 4 thus there is no simplification. 

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