3. Simplify the following:
(i) (x - 2y) (3x + 5y - 1) – 3x(x + y)
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Answer:
3x^2+5xy-x-6xy-10y^2+2y-3x^2-3xy = 2y-x-10y^2-4xy
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Step-by-step explanation:
Answer : -10y^{2} - 4xy- x + 2y
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