Answer:
Step-by-step explanation:
y = x 2 + 91 
 
Step-by-step explanation:
Let the number be x 
, then Square of the number is x ^2 
 
91 more than the square of a number" will be x^ 2 + 91 
 
So, we can write it as an algebraic expression with two variables as : 
 y = x ^2 + 91