Find the value

Question:

104 × 96 = ?
(a) 9864
(b) 9984
(c) 9684
(d) 9884

Solution:

(b) 9984

$104 \times 96=(100+4)(100-4)$

$=100^{2}-4^{2}$

$=(10000-16)$

$=9984$

 

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