Hachem, a Lebanese-British Muslim, was shot dead in a drive-by shooting as she was out grocery shopping.
Lancashire Police said that Feroz Suleman, 39, and Abubakir Satia, 31, will appear in court on Saturday.
The pair will also be charged with attempting to murder a man who was not the intended target in the incident. Police said two shots were fired, one hit a building and the other killed Hachem.
Her parents said in a statement: “We are absolutely devastated by her death and would like to take this opportunity to plead with any members of the public who may have any information however small that may bring those responsible to justice.”
Fourteen people have been detained by police during their investigation.
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