SOLUTION: simplify: 5-3(4x-1) Expand the brackets: (x+5)(2-x) (3x-y)2 (2is a small 2 to represent squared)

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Question 56693: simplify: 5-3(4x-1)
Expand the brackets: (x+5)(2-x)
(3x-y)2 (2is a small 2 to represent squared)

Found 2 solutions by funmath, tutorcecilia:
Answer by funmath(2925) About Me  (Show Source):
You can put this solution on YOUR website!
simplify:
5-3(4x-1)
5-3(4x)-3(-1)
5-12x+3
5+3-12x
8-12x
:
Expand the brackets:
(x+5)(2-x)
x(2)+x(-x)+5(2)+5(-x)
2x-x%5E2%2B10-5x
-x%5E2%2B2x-5x%2B10
-x%5E2-3x%2B10
:
%283x-y%29%5E2
%283x-y%29%283x-y%29
3x%283x%29%2B3x%28-y%29-y%283x%29-y%28-y%29
9x%5E2-3xy-3xy%2By%5E2
9x%5E2-6xy%2By%5E2
Happy Calculating!!!

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
simplify: 5-3(4x-1)
5-12x+3 [Distribute the (-3)]
8-12x [Combine like-terms]
.
.
Expand the brackets:
(x+5)(2-x) [Use the FOIL method to multiply]
2x-x^2+10-5x [Combine like-terms]
-x^2-3x+10
.
(3x-y)^2 [Expand the expression]
(3x-y)(3x-y) [Use the FOIL method to multiply]
9x^2-3xy-3xy+y^2 [Combine like-terms]
9x^2-6xy+y^2