Math, asked by anonymous4462, 11 months ago

determinant and the nature of the roots of a=2, b=1 c=-21

Answers

Answered by ALIKARIM

2

ANSWER

D=169

Step-by-step explanation:

SINCE ; D= b²-4ac

D= (1)²-4(2)(-21)

D=169

since, D is a perfect square D=(13)²

THEREFORE ROOTS ARE RATIONAL...!

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