I need 1.14and 1.15 please please please

The following message was en using Hamming's code above. Detect where errors have been made, and correct them. 111110011, 011111110, 100110011. Suppose a single error occurs in one of the check digits. Can detected, or will this error lead to 'removing' an error in the original message that wasn't even there? Replace the 2 times x 2-matrices by n times x n-matrices and develop