Wednesday, 20 August 2025

SQUARES J2

 

Evaluate 203962 – 203862

 

Solution


We use difference of two squares;

a2 – b2 = (a – b)(a + b)

 

203962 – 203862 = (20396 + 20386)(20396 – 20386)

 

                     = (40782)(10)

 

                     = 407820

 

203962 – 203862 = 407820

 

TRY THIS…………….

 

 

Evaluate 4573082 – 4572082


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