First, the smallest values of a and b must be found and then substituted into the equation for N.
To find a.
A square number is a number that is the result of multiplying and number by itself . Eg 2 squared is (2*2) = 4 so 4 is a square number.
The smallest value of a is the first 2 digit square number. This can be found by writing down the square numbers.
1 squared = 1
2 squared = 4
3 squared = 9
4 squared = 16
This shows that a is 16
To find b.
A cube number is a number that is the result of multiplying a number by itself twice. Eg 2 cubed is 222 = 8 so 8 is a square number.
The smallest value of a is the first 2 digit cube number. This can be found by writing down the cube numbers.
1 cubed = 1
2 cubed = 8
3 cubed = 27
This shows that b is 27
Now we have the values for a and b we can put them int the original equation and find N.
N=2a+b
N=2*16 + 27
N = 59