Mathematics, 26.06.2019 09:30 bangtann77
Write the expression as a polynomial (x+1)(x+2)(y–3)
Answers: 1
\\\\=(x^2+2x+x+2)(y-3)=(x^2+3x+2)(y-3)\\\\=(x^2)(y)+(x^2)(-3)+(3x)(y)+(3x)(-3)+(2)(y)+(2)(-3)\\\\=\boxed{x^2y-3x^2+3xy-9x+2y-6}](/tpl/images/0019/0066/1245a.png)
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