Math, asked by priyalsingh30, 1 year ago

x square - 4 x minus 1 is equal to below what is value of D

Answers

Answered by mdehtasham165

2

X²- 4X - 1

D² = b²-4ad

= (-4)²- 4×1×(-1)

= 16+4

=20

D = 2√2

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