SOLUTION: By forming and solving an equation find a positive number, or numbers, which satisfy the condition that the sum of a number and its square is 56

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: By forming and solving an equation find a positive number, or numbers, which satisfy the condition that the sum of a number and its square is 56      Log On


   

Question 892542: By forming and solving an equation find a positive number, or numbers, which satisfy the condition that the sum of a number and its square is 56
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
N%2BN%5E2=56
N%5E2%2BN-56=0
%28N%2B8%29%28N-7%29=0
Two solutions:
N%2B8=0
N=-8
and
N-7=0
N=7
Since we're only looking for positive solutions,
N=7