(7/7) LAST
1.) ((10 × 10) + 100) - 80) × 2)) = ?
2.) x² + y² - x³ - 7 + 2x² - x³ - y² = ?
1.) ((10 × 10) + 100) - 80) × 2)) = ?
2.) x² + y² - x³ - 7 + 2x² - x³ - y² = ?
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Penjelasan dengan langkah-langkah:
1.)
= ((10 × 10) + 100) - 80) × 2
= ((100 + 100) - 80) × 2
= (200 - 80) × 2
= 120 × 2
= 240
2.
= x² + y² - x³ - 7 + 2x² - x³ - y²
= x² + 2x² + y² - y² - x³ - x³ - 7
= 3x² + 0 - 0 - 7
= 3x² - 7
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