Question

5x² – 4x– 60 =0 than x =?​

Answer 1

Here, a = 5

b = –4

c = –60

From Sridharacharya's rule, we have :

D = b² – 4ac

D = (–4)² – 4×5×(–60)

D = 16 + 1200

D = 1216

x = –b±√D/2a

x = –(–4)±√1216/2×5

= 4 + 34.87/10 or 4 – 34.87/10

= 38.87/10 or –30.87/10

Thus, x = 3.887 ≈ 3.9 or x = 3.087 ≈ 3.1

Step-by-step explanation:

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