Question

Using the identity for difference of two squares , find the value of
(203)^2-(197)^2

Answer 1

Answer:

We know that identity for difference = a² - b² = (a+b)(a-b)

Step-by-step explanation:

Now putting the values in the given relation, we get:

203² - 197² = (203 - 197)(203+197)

⇒(6)(400)

⇒2400

Hence your answer is 2400.....

Answer 2

The value is $(203)^2-(197)^2=2400$.

Step-by-step explanation:

Given : Using the identity for difference of two squares $(203)^2-(197)^2$

To find : The value of expression ?

Solution :

Using the identity, $a^2- b^2= (a+b)(a-b)$

Here, a=203 and b=197

$(203)^2-(197)^2=(203-197)(203+197)$

$(203)^2-(197)^2=(6)(400)$

$(203)^2-(197)^2=2400$

Therefore, the value is $(203)^2-(197)^2=2400$.

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