Question

11 th grade algebra question 1

Answer 1

$\huge \bf༆ Answer ༄$

Here's the solution ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:a_{11} × a_{22} - a_{21} × a_{12}$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:(2 \times 4) - ( - 1 \times - 3)$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:8 - 3$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:5$