Answer:
First of all you have to know that,
( + ) × ( + ) = ( + )
( - ) × ( - ) = ( + )
( + ) × ( - ) = ( - )
Now let us solve now.
#1
- ( 5x + 3y + 5z ) + 6x
- 5x - 3y - 5z + 6x
- 5x + 6x - 3y - 5z
x - 3y - 5z
#2
- ( 4x - 5y + 8 )
- 4x +5y - 8
#3
6t - ( 5r - 4p + 9 )
6t - 5r + 4p -9
#4
-2 ( 3x + 7y )
- 6x - 14y
Hope this helps you :-)
Let me know if you have any other questions :-)
