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What is the difference of 6√63-4√28
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GPT-5 mini
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6√63 - 4√28
= 6·3√7 - 4·2√7 (since √63 = 3√7 and √28 = 2√7)
= 18√7 - 8√7
= 10√7
= 6·3√7 - 4·2√7 (since √63 = 3√7 and √28 = 2√7)
= 18√7 - 8√7
= 10√7
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