4 years ago

How many real solutions does the equation have? -x^2+9x-7

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

5 0

Hello :
-x^2+9x-7 =0
delta = b²-4ac =9²-4(-1)(-7) = 81-28 = 53>0
two reals solutions

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