I personally think it’s the first one
1 and -36
-1 and 36
6 and -6
18 and -2
-18 and 2
9 and -4
-9 and 4
Five times 10. because 10 is 5 more that 5 and 5 times 10 is 50 so the answer wound be 5 and 10 or 5×10=50
C^2 - 10c = 0
c^2 - 10c + 25 = 25
(c - 5)^2 = 25
c - 5 = sqrt 25
c = 5 (+-) sqrt 25
c = 5 (+-) 5
c = 5 + 5 = 10
c = 5 - 5 = 0
solutions are 0,10
