Question

упростите (x^2-9):(x+3)

Answer 1

x^2-9=(x-3)*(x+3)

(x-3)*(x+3)*(1/(x+3)=x-3 (x+3 сократится)

Answer 2

(x²-9):(x+3)=((x-3)(x+3)):(x+3)=x-3