Can you give me the work and answer to this question so i can understand it.

Polynomial that can be factored as (3x-4)(3x+4)

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

50 points~ ! i have to turn this in tomarrow