Question

Using properties of squares, find the value of 100²- 99².​

Answer 1

Answer:

100²-99²

using a²-b²=(a+b)(a-b)

(100-99)(100+99)

1(199)

199

Answer 2

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