Define \(E(a,b,c) = a \cdot b^2 + c\). What value of a is the solution to the equation \(E(a,4,5) = E(a,6,7)\)?
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
Thank you CPhill
OK, man !!!
+1207 
