có pt: x^2 - 2x - 2m + 1 = 0 a) giải pt với m = căn 2 b) tìm m để pt có 2 nghiệm x1 và x2 tm x2^2(x1^2-1)+x1^2(x2^2-1)=8

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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.

Choose the best answer.

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

Choose the best answer.

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