An algebra student is told to simplify (8x+15) / (2x-3) and produced the incorrect answer4x-5
a. What mistake did the student make?
b. Why do you think the student would make this mistake?
c. What would you say to them to correct their misunderstanding?
d. The student replied "But last week you said (x2-1) / (x+1) = x-1 . Why are you changing the rules all of the sudden? This is why math is stupid". What would you say to them to help them understands.