Write the expression in factored form: 25m4 power - n²

If the discriminant if a quadratic equation is 4 which statement describes the roots?

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8