Question

50 POINT QUESTION Evaluate the determinant of the matrix please show all steps

Answer 1

-4 det 4 4   -5 det 0 4  + 6 det 0 4

          -5 4             -2 4              -2 5

det a b

     c d  

ad -bc

-4 *(4*4- (-5*4))  -5 (0*-5 -4*(-2)) + 6(0*(-5)-(-2*4))

-4 (16 - (-20)) -5 (0+8) +6( 0-(-8))

-4(36) -40+48

-144-40+48

-136