Add:l² + m² , m² + x² , x² + l²
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Step-by-step explanation:
the answer of your question is 2l square+2m square +2x square
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Answer:
l"4 + m"4 + x"4
Step-by-step explanation:
first write same variables with pair
l"2 + l"2 + m"2 + m"2 + x"2 + x"2
then add
l"4 + m"4 + x"4
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