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32(15)=x(x+14)

 Apr 24, 2014

Best Answer 

 #1
avatar+130493 
+5

32(15)=x(x+14)

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So we have

480 = x2 + 14x  subtract 480 from both sides

0 = x2 + 14x - 480   This factors as

(x+30) (x-16) = 0

And setting each factor = 0   we get that

x = -30  and x = 16

 Apr 24, 2014
 #1
avatar+130493 
+5
Best Answer

32(15)=x(x+14)

-----------------------------------------------------------------------------------------------------------------

So we have

480 = x2 + 14x  subtract 480 from both sides

0 = x2 + 14x - 480   This factors as

(x+30) (x-16) = 0

And setting each factor = 0   we get that

x = -30  and x = 16

CPhill Apr 24, 2014

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