Solve following products without multiplying directly : 104 × 96

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2. Polynomials

easy

Evaluate the following products without multiplying directly : $104 \times 96$

A

$9995$

B

$9444$

C

$9884$

D

$9984$

Solution

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

$=(100)^{2}-(4)^{2} $ $\left[\right.$ Using $\left.( a + b )( a – b )= a ^{2}- b ^{2}\right]$

$=10000-16=9984$

Standard 9

Mathematics

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