1.

Find the value of discriminantx²+7x-1=0​

Answer»

x²+7x-1=0

Here,

a=1, b=7, c=-1

Discriminant (∆) = b²-4ac

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= (7)²-4×1×(-1)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 49+4

⠀⠀⠀⠀⠀⠀⠀⠀⠀∆=53

\therefore∆=53



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