Question

evaluate using suitable identity 17×23

Answer 1

(20-3)(20+3)
(20)^2-(3)^2
400-9
391 wait for chat

Answer 2

HEY MATE YOUR ANSWER IS

17×23

(20-3)(20+3)

[(a-b)(a+b)=a²-b²]

(20)² -(3)²

400-9

391

YOUR ANSWER IS 391

HOPE THIS HELPS YOU ❤❤