8:47\ Back\ Pulse\ 2 of 3\ MAC1140 Project 2\ 1\ MAC1140 Project 2: Matrices and Determinants\ b. Find

A^(2)-B^(2)

\ c. With variables and numbers,

(a-b)(a+b)=a^(2)-b^(2)

. Is the same thing true for matrices? Explain your answer.\ 3. a. Find

(A+B)^(2)

\ b. Find

A^(2)+AB+BA+B^(2)

\ c. How are the results of parts

a

and

b

related?\ Christel Saylor; 2018\ MAC1140 Project 2\ 2\ MAC1140 Project 2: Matrices and Determinants\ d. In general, does

AB=BA

? Explain your answer.