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nalin [4]
3 years ago
13

Which statement is true about the difference 2 square root of 7 − square root of 28? It is rational and equal to −2. It is ratio

nal and equal to 0. It is irrational and equal to −2square root of 7. It is irrational and equal tosquare root of 7.
Mathematics
1 answer:
scZoUnD [109]3 years ago
4 0
2\sqrt{7}  -  \sqrt{28}  = 2 \sqrt{7} -  \sqrt{4 \times 7 }  =2 \sqrt{7} - 2 \sqrt{7 }   = 0
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