Question

Find a matrix X if any that satisfies the equation BX+AB = CX where B = [2 -3; 4 4], A = [3 1; 5 2] and C=[6 4; -2 -1]

Answer 1

did you copy the prob correctly?

Answer 2

Yes why does it not work?

Answer 3

B = [2 -3; 4 4] is that 2-3?

Answer 4

C=[6 4; -2 -1] also is that -2 -2?

Answer 5

well it's a 2x2 by two matrix so yeah it's two numbers 2 and -3 and yeah C is -2 and -2

Answer 6

2x2*

Answer 7

is it like this...
B = [2 ,-3; 4, 4], A = [3, 1; 5, 2] and C=[6, 4; -2, -1] ?

Answer 8

looks like its 4x4 matrix system

Answer 9

ah i got what you mean its 2x2 by 2x2..ok

Answer 10

Yeah lol..

Answer 11

normally called 2 by 2 matrix?

Answer 12

yeah ok..you just mised the comma there..lol

Answer 13

No that's how I normally write and people understand but it's alright do you know how to approach this question?

Answer 14

ill be right back.....my pc kept hanging up on me...lol

Answer 15

Alright

Answer 16

im back..
use this..
BX+AB=CX
AB=CX-BX
AB=X(C-B) TRY THAT FIRST

Answer 17

DO AB FIRST THEN X=AB (C-B)^-1 SOLVE THAT

Answer 18

Oh so to get X by itself it's the inverse of C-B?

Answer 19

YEAH CORRECT

Answer 20

Alright thanks

Answer 21

ok have fun solving,,,lol thnx for the medal