Question

19^2-18^2 using identities

Answer 1

using identity
(a²-b²)=(a+b)(a-b),

then

19²-18²

(19+18)(19-18),

37×1,

37

Answer 2

heya...

Here is your answer....

19^2-18^2

a^2-b^2 = (a+b)(a-b)

Here a = 19 and b= 18

(19+18)(19-18)

(37)(1)

37

It may help you...☺☺