SOLUTION: (5x-1)^2 =(5x-1)(5x-1) =25x^2 the answer is 25x^2-10x+1 but I don't see the order of operation

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: (5x-1)^2 =(5x-1)(5x-1) =25x^2 the answer is 25x^2-10x+1 but I don't see the order of operation      Log On


   

Question 45676: (5x-1)^2
=(5x-1)(5x-1)
=25x^2

the answer is 25x^2-10x+1 but I don't see the order of operation
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply terms in the order according to the F.O.I.L. method:
F=Multiply the first terms together
O = Multiply the outer terms together
I=Multiply the inner terms together
L=Multiply the last terms together
.
Putting it all together:
(5x-1)^2
(5x-1)(5x-1) [Expand the polynomial]
(5x)(5x) + (5x)(-1)+ (-1)(5x) + (-1)(-1)[Apply F.O.I.L. and multiply]
25x^2 - 5x - 5x + 1 [Combine like-terms and simply]
25x^2 - 10x + 1 [Final answer]