Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 9 Quadratic Relations and Conic Sections - 9.4 Graph and Write Equations of Ellipses - 9.4 Exercises - Mixed Review - Page 639: 57

Answer

See below

Work Step by Step

The solution of a $3 \times 3$ matrix is $\begin{bmatrix} 1 & 0& -2\\ 3 & -4 & 0\\ 2 & 0 & 5 \end{bmatrix}\\=-6[(0)(-5)-(-2)(1)]-1[(3)(5)-(-2)(-1)]+8[(3)(1))-(0)(-1)]\\=-1$
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