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Alex Ar [27]
3 years ago
12

Find the exact solution of x.

Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0

Answer:

x = +/- square root of 7

Step-by-step explanation:

3x^{2} +7=28\\3x^{2} =21\\x^{2} =7\\x=\sqrt{7} and x=-\sqrt{7}

MA_775_DIABLO [31]3 years ago
4 0

Answer:

the answer is a . hope this helps

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