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A^2 + a^-² = ?What is 'a' power '2' + 'a' power 'minus 2'? With reason.​

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ANSWER:

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Step-by-step explanation:

a^2 + a^-2 = a^2 + 1/a^2 = [USING cross multiplication] a^4/a^2 = [CANCELING a^2 in NUMERATOR and denominator] a^2



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