Question

100²-99²=_=_ please answer this

Answer 1

Step-by-step explanation:

it is in the form of ' a square ' - ' b square '

According to formula (a + b ) ( a-b)

(100+99)(100-99)

199*1

=199

Answer 2

Answer:

199

Step-by-step explanation:

Using identity (a+b) (a-b) = a² - b²

Here, a = 100 and b = 99

( 100 + 99 ) ( 100 - 99 )

199 × 1

199

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