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Fudgin [204]
3 years ago
6

If the quadratic formula is used to solve 2x 2 - 3x - 1 = 0, what are the solutions?

Mathematics
2 answers:
elena-s [515]3 years ago
8 0
Hello : 
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a <span>≠ 0) is :
</span><span>Δ = b² -4ac
1 )  </span>Δ > 0  the equation has two reals solutions : x =  (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ <span>< 0 : no reals solutions
in this exercice :   </span><span>2x ² - 3x - 1 = 0....a =2        b =-3        c =-1
calculate : </span>Δ ......................................
PSYCHO15rus [73]3 years ago
8 0

The correct answer is Option (C):

3 +/- \sqrt{17} / 4

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