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valkas [14]
3 years ago
8

How many solutions are there to the equation x2 - 7 = 0?

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0
Use the discriminant (b^2-4ac)

a=1, b=0, c=-7
0^2-4(1)(-7)
0-4(-7)
0+28
28

Since 28>1, there are 2 solutions.
Final answer: B
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