Question

The value of (99)2

- (98)2

is :
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Answer 1

The value of (99)2 - (98)2 is = ?

(99)2 - (98)2 = (99 + 98) = 197 ans

Answer 2

99² - 98² = 197

Given :

The expression 99² - 98²

To find :

The value of the expression

Formula :

a² - b² = ( a + b ) ( a - b )

Solution :

Step 1 of 2 :

Write down the given expression

The given expression is

99² - 98²

Step 2 of 2 :

Find the value of the expression

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

$\sf {99}^{2} - {98}^{2}$

$\sf = (99 + 98) \times (99 - 98)$

$\sf =197 \times 1$

$\sf = 197$

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