Question

 The roots of the equation 7x² + x – 1 = 0 are ​

Answer 1

Step-by-step explanation:

Given equation is x

2

+7x−1=0

Discriminant=Δ=b

2

−4ac

where a=1,b=7 and c=−1

∴Δ=7

2

−4×1×−1=49+4=53>0