Question

solve z(r)+z(r-1)=3r2^r

Answer 1

(zr + (z • (r - 1))) - (3r2 • r)
=(zr + z • (r - 1)) - 3r3 = 0
=2zr - z - 3r3

Answer 2

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z*(r)+z*(r-1)-(3*r^2*r)=0 
(zr + (z • (r - 1))) - (3r2 • r) = 0
(zr + z • (r - 1)) - 3r3 = 0
2zr - z - 3r3 = 0

Solve   2zr-z-3r3  = 0 

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

We shall not handle this type of equations at this time.

______ "No solutions found"______