Question

7. Without actually finding the squares, fill in the blanks :
(i) (18)2 – (17)2 =
(ii) (20)2 – (19)2 =
(iii) (512​

Answer 1

Answer:

I) 35

ii)39

Step-by-step explanation:

i) (18+17)(18-17)= (35)(1)=,35

similarly ii) 39