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Асуна0205
@Асуна0205
August 2022
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1) 10а^2b - 2a^2 + 5ab^2 - ab = ?
2) 2x^3 - 3x^2y - 4x + 6y = ?
3) x^2y - x + xy^2 - y = ?
Помогите пожалуйста с примерами.
P.S. "^" - это степень
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kmike21
Verified answer
1) 10а²b - 2a²+ 5ab² - ab = 5ab(2a+b)-a(2a+b)=(5ab-a)(2a+b)=a (5b-1)(2a+b)
2) 2x³ - 3x²y - 4x + 6y = x²(2x-3y)-2(x-3y)=(x²-2)(2x-3y)
3) x²y - x + xy² - y = x (xy-1)+y (xy-1)=(x+y)(xy-1)
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Answers & Comments
Verified answer
1) 10а²b - 2a²+ 5ab² - ab = 5ab(2a+b)-a(2a+b)=(5ab-a)(2a+b)=a (5b-1)(2a+b)2) 2x³ - 3x²y - 4x + 6y = x²(2x-3y)-2(x-3y)=(x²-2)(2x-3y)
3) x²y - x + xy² - y = x (xy-1)+y (xy-1)=(x+y)(xy-1)