Question

find the value of discriminant
x²+7x-1=0​

Answer 1

$Given \: equation is  x2+7x−1=0$

$Discriminant=Δ=b2−4ac$

$where a=1,b=7 and c=−1$

$∴Δ=7^{2} 2−4×1×−1=49+4=53>0$

Answer 2

Answer:

Givenequationis x2+7x−1=0

Discriminant=Δ=b2−4acDiscriminant=Δ=b2−4ac

where a=1,b=7 and c=−1where a=1,b=7 and c=−1

∴Δ=7^{2} 2−4×1×−1=49+4=53 > 0∴Δ=7

2

2−4×1×−1=49+4=53>0