Toán Lớp 8: thực hiện phép tính: 2x(3x+5)-3(2x^2-2x+3)
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Toán Lớp 8: thực hiện phép tính: 2x(3x+5)-3(2x^2-2x+3)
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$=6x^2+10x-6x^2+6x-9 $
$=16x-9$