Mathematics, 17.06.2021 14:00, evelynalper08

1)Rút gọn: (√9+4√5)-(√9-4√5)-√5+(√23-8√7)
2)Chứng minh:
x²+x√3+1 luôn luôn dương với mọi x.

Answers: 3

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Do you know the correct answer?

1)Rút gọn: (√9+4√5)-(√9-4√5)-√5+(√23-8√7)
2)Chứng minh:
x²+x√3+1 luôn luôn dương với m...

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1)Rút gọn: (√9+4√5)-(√9-4√5)-√5+(√23-8√7) 2)Chứng minh: x²+x√3+1 luôn luôn dương với mọi x.

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Other questions on the subject: Mathematics

Questions in other subjects:

1)Rút gọn: (√9+4√5)-(√9-4√5)-√5+(√23-8√7)
2)Chứng minh:
x²+x√3+1 luôn luôn dương với mọi x.