1)tìm a,b nguyên tm 37a^2 + 26b^2 + 60ab + 64a+ 22b +160 ≤ 0 2)cho p , q là số nguyên tố tm p^2 - q^2 = p - 3q + 2 . Cm p^2 + q^2 cũng là số nguyên tố 3) a ) giải phương trình x^3 - 3x^2 + 2 . căn của ( x+2)^3 - 6x = 0 4) Cho a,b,c là các số thực dương cmr M = ( a+b) / ( ab+c^2 ) + ( b+c ) / ( bc+ a^2 ) + ( c + a ) / ( ac+ b^2) ≤ 1/a + 1/b + 1/c 5 ) cho biết a^2 + b^2 chia hết cho 7 , cmr a,b cũng chia hết cho 7

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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.