FREE POINTS because i passed my midterms

Find the roots of the equation below. x^2 - 6 + 9 = 0

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?