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There are two distinct solutions x to the equation 18 + 5x^2 = 30x. If each solution is rounded to the nearest integer, and then these two integers are multiplied together, what is the result?

 Oct 29, 2022
 #1
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The result is -35.

 Oct 30, 2022
 #2
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18 + 5x^2 = 30x. 

 

5x^2  -  30x  +  18 =0

Use the quadratic formula to get:

 

x= 5.323790008
x= 0.6762099923

 

 

5.323790008  *  0.6762099923 = 3.6

 Oct 30, 2022

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