Question

evaluate (203)² - (197)²​

Answer 1

Answer:

2400

Step-by-step explanation

(203)² - (197)²​

203*203 - 197*197

41209 - 38809

= 2400

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Answer 2

To evaluate : $(203)^{2} - (197)^{2}$

Solution:

• To evaluate the given expression  $(203)^{2} - (197)^{2}$ we apply identity :

         $a^{2} - b^{2} = ( a + b ) ( a - b )$

• Here , $a = 203 \ and \ b = 197$

• Therefore,  $(203)^{2} - (197)^{2}$ = $(203 + 197 ) ( 203 - 197 )$

                                                   $= ( 300) ( 6 )$

                                                   $= 1800$

      Hence on evaluating  $(203)^{2} - (197)^{2}$ we get $1800$.