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AVprozaik [17]
3 years ago
11

What are the exact solutions of x2 − 3x − 1 = 0?

Mathematics
2 answers:
____ [38]3 years ago
7 0
Hi, the quadratic formula is: \boxed{X= \dfrac{-b \pm \sqrt{b ^{2}-4ac } }{2a}}

Values: a = 1; b = - 3; c = -1
Solving:

X ^{2}-3X-1=0

X= \dfrac{-(-3) \pm \sqrt{(-3) ^{2}-4(1)(-1) } }{2(1)}

X= \dfrac{3 \pm \sqrt{9+4} }{2}

X= \dfrac{3 \pm \sqrt{13} }{2}\ ===\ \textgreater \ \ Answer:\ \boxed{ \textbf{Option\ {C.}}}

GOOD LUCK...!!!
kobusy [5.1K]3 years ago
3 0
Option C is the answer!

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