SOLUTION: perform the indicated operations and simplify Let A =matrix[3,-4_-2,5] Let B= matrix[5,-2,8_1,0,-3] and C=matrix[7,-9,0_3,-5,1_-1,6,2] Find AB+BC I am stuck my the answers avail

Algebra ->  Matrices-and-determiminant -> SOLUTION: perform the indicated operations and simplify Let A =matrix[3,-4_-2,5] Let B= matrix[5,-2,8_1,0,-3] and C=matrix[7,-9,0_3,-5,1_-1,6,2] Find AB+BC I am stuck my the answers avail      Log On


   

Question 1065020: perform the indicated operations and simplify Let A =matrix[3,-4_-2,5] Let B= matrix[5,-2,8_1,0,-3] and C=matrix[7,-9,0_3,-5,1_-1,6,2] Find AB+BC
I am stuck my the answers available are
A.[32,19,40_-15,31,-37]
B.[68,3,31_8,-2,-5]
C.[-10,-19,12_-15,31,-25]
D.[32,7,50_5,-23,-37}
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=%28matrix%282%2C2%2C3%2C-4%2C-2%2C5%29%29
B=%28matrix%282%2C3%2C5%2C-2%2C8%2C1%2C0%2C-3%29%29
C=%28matrix%283%2C3%2C7%2C-9%2C0%2C3%2C-5%2C1%2C-1%2C6%2C2%29%29
So,
AB=%28matrix%282%2C3%2C11%2C-6%2C36%2C-5%2C4%2C-31%29%29
BC=%28matrix%282%2C3%2C21%2C13%2C14%2C10%2C-27%2C-6%29%29
So then,
AB%2BBC=%28matrix%282%2C3%2C32%2C7%2C50%2C5%2C-23%2C-37%29%29