Math Problem Statement
the sum of the square of two consecutive integers is 145. find the integers
Solution
Let the two consecutive integers be and .
The sum of the square of these two consecutive integers is given by the equation:
Now expand the equation:
Simplify it:
Subtract 145 from both sides to set the equation to 0:
Now, divide the whole equation by 2 to simplify it:
This is a quadratic equation. To solve it, we can factor it:
So, or .
Thus, the two pairs of consecutive integers are:
- ,
- ,
Therefore, the integers are either or .
Would you like a detailed explanation of any part of the solution?
Here are five questions that build on this problem:
- How do you factor a quadratic equation?
- Can the quadratic formula be used here instead of factoring?
- What if the sum of squares was different, say 169, how would the solution change?
- How does completing the square work for this problem?
- Could there be any other pairs of consecutive numbers?
Tip: Always check your solutions by substituting them back into the original equation!
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Equations
Factoring
Formulas
x^2 + (x+1)^2 = 145
Quadratic equation: ax^2 + bx + c = 0
Theorems
Quadratic Formula
Factoring Theorem
Suitable Grade Level
Grades 8-10
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