Упростите выражение x/x-3-2/x+3:4x²+4x+24/x²-9
[x/(x-3) - 2/(x+3)] : [(4x²+4x+24)/(x² - 9)] = = [x(x+3) -2(x-3)]/(x² - 9) : [(4x²+4x+24)/(x² - 9)] = = (x²+x+6)/[4((x²+x+6)] = 1/4