Question

determine the nature 2x2+x-1=0

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Answer 1

Answer:

2*2+x-1=0

4+x-1=0

3+x=0

x= -3

Step-by-step explanation:

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Answer 2

HeYa❤️...

Answer:

$discrminant \: = b {}^{2} - 4ac \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 1 - 4 \times 2 \times ( - 1) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 1 + 8 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 9$

D>0, so it has real roots.

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