SOLUTION: <pre>Write a quadratic equation that has the following two solutions: x = 4 and x = -9) here is my equation (x - 4)(x + 9) = 0 x² + 5x - 36 = 0</pre>

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Question 39613: 
Write a quadratic equation that has the following two solutions: 
x = 4 and x = -9) 
here is my equation

 (x - 4)(x + 9) = 0
  
   x² + 5x - 36 = 0
Answer by AnlytcPhil(1810)   (Show Source): You can put this solution on YOUR website!
Write a quadratic equation that has the following two
solutions:
  
x = 4 and x = -9) 

here is my equation

 (x - 4)(x + 9) = 0
  
   x² + 5x - 36 = 0 
 
Substitute y temporarily for 0
and plot this graph

y = x² + 5x - 36




But since we substituted y for 0, we can only use the two points
on that graph where y actually is 0, and those two points are
(-9,0) and (4,0), where the graph crosses the x-axis. 

Edwin
AnlytcPhil@aol.com
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