Question

1) Find the value of (7x)2.
(7x) ਦਾ ਮੁੱਲ ਪਤਾ ਕਰੋ ।​

Answer 1

Answer:

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

Step-by-step explanation:

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