Question

2.
Remove the brackets and simplify.
(a) 5x - 2y - {3x - (y - x)}]
(b) x - 2y- [4x - y - {x - 22 - (x +2y)}]
(c) 3x - [4y - {3x - (4y - (4x + 2y))}]
(d) - m2 - [m - {m2 + 3m - (4m - m2 - (2m - 3m))}]​

Answer 1

Answer:

sorry I don't know this ans

Answer 2

Step-by-step explanation:

(a) [5x -2y -{3x-(y-x)}]

=[5x -2y -{3x -y+x}]

=[5x -2y -4x - y]

= x -3y

(b) x -2y - [4x-y -{ x - 22 -(x+2y)}]

=x -2y - [4x-y -{ x - 22 - x -2y}]

=x -2y - [4x-y - x +22+ x +2y]

=x -2y - 4x +y + x -22- x -2y

=-5x +2x -4y +y -22

=-3x -3y -22

(c)3x -[4y -{3x -(4y-(4x+2y))}]

=3x -[4y -{3x -(4y -4x -2y)}]

=3x -[4y -{3x -4y +4x +2y}]

=3x -[4y - 3x +4y -4x - 2y]

=3x -4y +3x - 4y +4x +2y

=10x -8y +2y

=10x -6y

(d) -m² -[m -{m² +3m -(4m -m² -(2m -3m))}]

= -m² -[m -{m² +3m -(4m -m² -2m+3m)}]

= -m² -[m -{m² +3m - 4m + m² +2m -3m}]

=-m² -[m -m² -3m + 4m - m² - 2m + 3m]

=-m² - m +m² +3m - 4m +m² +2m - 3m

= 2m² - m² -8m +5m

= m² - 3m

I hope these answers helpful for you.....