
Concept explainers
To find: the two real numbers with a sum of

Answer to Problem 36PPS
Explanation of Solution
Given:
The sum of two real number is
Calculation:
Represent the given condition is expressed in to standard form:
Let x be the variable for the first unknown number.
And
Therefore, according to the question,
Now, graph the related quadratic function to show that x-intercept of the graph. Therefore,
Looking at the graph, the parabola crosses the x-axis, therefore, the equation has the solution.
The axis of symmetric is
Now write the table for the given function.
Based on the table and the graph, the function has two zero
Hence, the solution of the given equation is between
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Algebra 2
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