The sum of the squares of two consecutive natural numbers is 41. Find the numbers.
Question
The sum of the squares of two consecutive natural numbers is 41. Find the numbers.
Solution
Sure, let's solve this step by step.
Step 1: Let's denote the two consecutive natural numbers as n and n+1.
Step 2: According to the problem, the sum of the squares of these two numbers is 41. So, we can write the equation as:
n^2 + (n+1)^2 = 41
Step 3: Expand the equation:
n^2 + n^2 + 2n + 1 = 41
Step 4: Simplify the equation:
2n^2 + 2n + 1 - 41 = 0
Step 5: Further simplify the equation:
2n^2 + 2n - 40 = 0
Step 6: Divide the equation by 2 to make it simpler:
n^2 + n - 20 = 0
Step 7: This is a quadratic equation in the form of ax^2 + bx + c = 0. We can solve it by factoring:
(n - 4)(n + 5) = 0
Step 8: Set each factor equal to zero and solve for n:
n - 4 = 0 => n = 4
n + 5 = 0 => n = -5
Step 9: Since n is a natural number, n = -5 is not a valid solution. So, the two consecutive numbers are 4 and 5.
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