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avatar+1196 

Define \(E(a,b,c) = a \cdot b^2 + c\). What value of a is the solution to the equation \(E(a,4,5) = E(a,6,7)\)?

 Oct 8, 2019
 #1
avatar+104962 
+2

We have that

 

a*(4)^2 + 5  = a*(6)^2 + 7     simplify

 

16a + 5  =  36a + 7      subtract  7, 16a from both side

 

-2  =  20a         divide both sides by 20

 

-2/20  = a  =  -1/10

 

 

cool cool cool

 Oct 8, 2019
 #2
avatar+1196 
+1

Thank you CPhill

 Oct 8, 2019
 #3
avatar+104962 
0

OK, man  !!!

 

 

cool cool cool

CPhill  Oct 8, 2019

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