Đáp án:
√8+2√15−√8−2√15=√(√3+√5)2−√(√5−√3)2=|√3+√5|−|√5−√3|=√3+√5−√5+√3=2√3
Giải thích các bước giải:
Choose the best answer.
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.
We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.