I needed help with that too
Answer:
1024 or A
Step-by-step explanation:
64 x4 is 256 x4 it's a 1024
X would have to equal 2 because when you multiply that by 7 you get 14 then add 3 and you get 17
Let x is the first no. then the other no. will obviously be (x+1)
according to question,
(x+1)²- x²= 15
x² +2x+1 - x² = 15 ( using (a+b)²= a²+ b² + 2ab )
2x + 1 = 15
2x = 14
x = 7
hence numbers are x = 7 and x +1 = 7+1 = 8
also 8²-7² = 64-49 = 15
hence the numbers are 7 and 8
hope it helped
