SOLUTION: Multiply: (a-2/5)(a+5/2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Multiply: (a-2/5)(a+5/2)       Log On


   

Question 483408: Multiply:
(a-2/5)(a+5/2)



Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply:
(a-2/5)(a+5/2)
-----
= (a(a+(5/2))-(2/5)(a+(5/2))
-----
= a^2 + (5/2)a -(2/5)a - 1
-----
= a^2 + [(5/2)-(2/5)]a -1
-----
= a^2 + [(25-4)/10]a -1
----
= z^2 + (21/10)a -1
==========================
Cheers,
Stan H.