cho phương trình x^2+2x-m=0 a) giải phương trình khi m=-1 b) tìm m để phương trình có nghiệm c) tìm m để phương trình có 2 nghiệm trái dấu d) tìm m để phương trình P=x1^4+x2^4 Min

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I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

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We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

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I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.