Penjelasan dengan langkah-langkah:
20² + 20² - 10
= (20 × 20) + (20×20) - 10
= 400 + 400 - 10
= 800 - 10
= 790
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Penjelasan dengan langkah-langkah:
20² + 20² - 10
= (20 × 20) + (20×20) - 10
= 400 + 400 - 10
= 800 - 10
= 790