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81a^2x+9a^2y-90bx-10by
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81a^2x+9a^2y-90bx-10by

User Vlasta Po
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1 Answer

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1. Factor out 9a^2 from the expression
9a^2 x(9x+y) - 90bx - 10by

2. Factor out -10b from the expression
9a^2 x(9x+y) - 10b x(9x+y)

3. Factor out 9x + y from the expression
(9x+y)x(9a^2 - 10b)

Solution: (9x+y)x(9a^2 - 10b)
User J K
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