Question

Simplify each of the following expressions.

*Remember: The minus sign between the brackets means the sign inside the brackets changes to the
opposite of what is was, + to — or — to +
a) (5x + 4) – (x – 2) b) (6 – 3x) + (x – 5x)

c) (4x + 5) – (3x – 2) – 6 d) 9x + 5 – 7x

Answer 1

a)
`-5x^(2)` + 6x + 8

b) 6 - 7x

c)
`-12x^(2)` - 7x +4

d) 2x + 5

Explanation:

a) (5x + 4) – (x – 2)

(5x + 4) (-x + 2)

`-5x^(2)` + 10x - 4x + 8

`-5x^(2)` + 6x + 8

b) (6 – 3x) + (x – 5x)

6 – 3x + x – 5x

6 - 7x

c) (4x + 5) – (3x – 2) – 6

(4x + 5) (–3x + 2) – 6

`-12x^(2)` + 8x -15x + 10 -6

`-12x^(2)` - 7x +4

d) 9x + 5 – 7x

2x + 5

hope this helps!