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can someone help me on 28? Thx 

 May 11, 2016
 #1
avatar+817 
+5

8*3=x(x-2)

24=x^2-2x

x^2-2x-24=0

(x-6)(x+4)=0

x=-6 or x=4

 May 11, 2016
 #2
avatar+130018 
0

Thanks, Landry.......since we have a distance, x must be positive.........so......

 

(x - 6) (x + 4)  = 0

 

Set both factors = 0       and x = 6 or x = -4

 

And x = 6 is correct

 

 

cool cool cool

 May 12, 2016

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