Discover Questions

What is the origin of positive and X-rays? (12a^2 − 6a − 6) ÷ (2a + 3)? (2y^2 + 11y – 10) ÷ (2y – 3)? How do you go from:
y=(2 + (2x+4)/(2x+1) )
to
y=(3 + 3/(2x+1) )? What are the formulas for factoring perfect squares and the difference of squares? Give an example of each and factor. (Please show work)?