2) (x-14)/(x^3+4x) domain of F is? x^3 + 4x = 0 ==> x(x^2 + 4) = 0 x = 0, 2i, -2i Domain is R - {0} or (-infy, 0) U (0, +infy) 3)6x/ square root X+7 the domain is? x + 7 > 0 ==> x > -7 Domain is (-7, +infy) Solution 2) (x-14)/(x^3+4x) domain of F is? x^3 + 4x = 0 ==> x(x^2 + 4) = 0 x = 0, 2i, -2i Domain is R - {0} or (-infy, 0) U (0, +infy) 3)6x/ square root X+7 the domain is? x + 7 > 0 ==> x > -7 Domain is (-7, +infy).