Help me PLZ KDKDKSSK :( asap

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

I'm confused on this could anyone me and show me what i need to do to solve it.

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato