A First Course in Linear Algebra · Problem RQ-RREF-2

Systems of Linear Equations — Robert Beezer

Mathematics — Linear Algebra · row-reduce-to-rref

Problem

Use row operations to convert the matrix below to reduced row-echelon form and report the final matrix.

\begin{bmatrix} 2 & 1 & 8 \\ -1 & 1 & -1 \\ -2 & 5 & 4 \end{bmatrix}