Could you help me with my calc work

Evaluate the limit, if it exists. (If an answer does not exist, enter DNE.) 2 - 4x + 3 lim x4 6 x - 6Evaluate the limit, if it exists. (If an answer does not exist, enter DNE.) Hint: + + 2 is a factor of the numerator. 13 -5x-2 lim C+-2 r +2Find the number a such that the limit exists. 4x2 taxta + 28 lim X-4-3 2 + 2x - 3 E Find the value of the limit.Find the exact value of the limit, if it exists. (If an answer does not exist, enter DNE.) lim (-4+ 1)2 - 16 h