Could anyone please help me with these math problems??

Question

Could someone please help me with these math problems please.. thanks..

1. Simplify completely 9x+18 / x+ 2
A) 9(x+2) / (x+2)
B) 15
C) 9
D) 9x +6 / x

2. simplify completely x^2 -25 / x^2 +3x -10
A) (x+5)(x-5) / (x+5)(x-2)
B) x+5 / x+2
C) -25 / 3x -10
D) x - 5 / x-2

3. simplify completely (3x - 6) / (x^2 - 9) * (x+3) / (x^2 -2x)
A) 3 / x(x-3)
B) 3 / x(x+3)
C) 3 / x
D) 3 / x-3

4. simplify completely (x^2 +4x+4) / 20 divide (x+2) / 10
A) x+ 2
B) x-2 /2
C) x+2 / 2
D) 2(x+2)

Answer 1

9x + 18 / x+ 2 =

9(x + 2) / x + 2 =

The x + 2 cancell

9 / 1 =

9

- - - - - -

x² - 25 / x² + 3x - 10

(x - 5)(x + 5) / (x + 5)(x - 2)

x + 5 cancell

x - 5 / x - 2 . . . This is the answer

- - - - - - -s-

Answer 2

1) C
2) D
3) A
4) C

Answer 3

1) C
2) D
3) A
4) C