answer it please.no irrevalant answers
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7.
i) 3x²(3y²+2)-x(x-2xy²)+y(2x²y-2y)
= 9x²y²+6x²-x²+2x²y²+2x²y²-2y²
= 5x²+13x²y²-2y²
ii) (2x+7)(5x+9)-(4x²+1)(x-3)
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hi sweetu
u r my bestie na darling so thats y i changed my bio
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happy birthday darling (in advance)❤❤
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