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प्रश्न
How much bigger is 5x2y2 – 18xy2 – 10x2y than –5x2 + 6x2y – 7xy?
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उत्तर
The required result,
(5x2y2 – 18xy2 – 10x2y) – (–5x2 + 6x2y – 7xy)
= 5x2y2 – 18xy2 – 10x2y + 5x2 + 6x2y – 7xy
= 5x2y2 – 18xy2 – 16x2y + 5x2 + 7xy
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