Question 56693
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^2+10-5x}}}
{{{-x^2+2x-5x+10}}}
{{{-x^2-3x+10}}}
:
{{{(3x-y)^2}}}
{{{(3x-y)(3x-y)}}}
{{{3x(3x)+3x(-y)-y(3x)-y(-y)}}}
{{{9x^2-3xy-3xy+y^2}}}
{{{9x^2-6xy+y^2}}}
Happy Calculating!!!