{(476 + 424)2 – 4 x 476 x 424} = ?

Question:
{(476 + 424)2 – 4 x 476 x 424} = ?

[A].

2906

[B].

3116

[C].

2704

[D].

2904

Answer: Option C

Explanation:

Given Exp.	= [(a + b)2 – 4ab], where a = 476 and b = 424
	= [(476 + 424)2 – 4 x 476 x 424]
	= [(900)2 – 807296]
	= 810000 – 807296
	= 2704.