Đáp án:
= 7
Giải thích các bước giải:
√$(-7)^{2}$ = √49 = 7
$(-7)^{2}$ = $7^{2}$ = 49
$\sqrt[]{49}$ = 7
cho mik 5* và ctlhn nhé!
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.