Question

Evaluate the following:
(i) (241)2 – (240)
Express the following
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Answer 1

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Answer 2

241² - 240² = 481

Correct question : Evaluate the following : 241² - 240²

Given :

The expression 241² - 240²

To find :

The value of the expression

Solution :

Step 1 of 2 :

Write down the given expression

The given expression is 241² - 240²

Step 2 of 2 :

Find the value of the expression

Use the formula a² - b² = (a + b) (a - b)

$\sf {241}^{2} - {240}^{2}$

$\sf = (241 + 240) \times (241 - 240)$

$\sf = 481 \times 1$

$\sf = 481$

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