ella547 ella547

21-09-2021
Mathematics

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Please solve the above question correctly while showing detailed working.

Please solve the above question correctly while showing detailed working class=

Respuesta :

jimrgrant1 jimrgrant1

21-09-2021

Answer:

- 4x³ - 2xy - 2y²

Step-by-step explanation:

3x³ + 5xy - 8y² - (7x³ + 7xy - 6y²) ← distribute parenthesis by - 1

= 3x³ + 5xy - 8y² - 7x³ - 7xy + 6y² ← collect like terms

= - 4x³ - 2xy - 2y²

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