lulbabeyalondra109 lulbabeyalondra109

21-10-2021
Mathematics

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Write an expression equivalent to (9m3 + 5m2 - 3y 2) - (2m3+2m2) - (3m2 - y2) using the fewest number of possible terms

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JoshEast JoshEast

21-10-2021

Answer: 7m³ - 2y²

Step-by-step explanation:

Answer = (9m³ + 5m² - 3y²) - (2m³+2m²) - (3m² - y²) [expand the brackets]

= 9m³ + 5m² - 3y² - 2m³- 2m²-3m² + y² [group like terms]

= 9m³- 2m³+ 5m²- 2m²- 3m²- 3y²+ y² [simplify]

= 7m³ - 2y²

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