Question

(8+9)(8-9)=16 tell me the answer ​

Answer 1

Use the property :-

$(x + y) \: (x - y) = {x}^{2} - {y}^{2} \\ \\ (8 + 9) \: (8 - 9) = {8}^{2} - {9}^{2} \\ \\ = 64 - 81 \\ \\ = - 15$

Hope it helps.

Answer 2

Answer:-17

Explanation:

(8+9)*(8-9)

=17*-1

=-17