Question

Find the value of x^ 2 y^ 2 z^ 2 1 when x = 1 and y = - 2 .

Answer 1

Step-by-step explanation:

${x}^{2} {y}^{2} {z}^{2} 1$

$x = 1 \\ y = - 2$

$( {1}^{2} )( { - 2}^{2} ) {z}^{2} 1 \\ 1 \times 4 \: {z}^{2} \times 1 \\ 4 {z}^{2}$

Answer 2

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