Question

19. (475+475)2-4×475×425 is equal to
(A) 3600
(B) 3500
(C) 2500
(D) 3160
​

Answer 1

$(475 + 475)2 - 4 \times 475 \times 425$

$(950) - 2 \times 201875$

$(950) - 403750$

$402800$

$option \: is \: d$