Question

gente me ajude com isso

Answer 1

a)

15x²y / 3y =

3 . 5 . x² . y / 3 . y =

5x²

----------------

b)

(2x³ - 6x²) / 2x =

2x(x² - 3x) / 2x =

x² - 3x

----------------

c)

(x² - 9) /  (x + 3) =

(x + 3)(x - 3) / (x + 3) =

x - 3

-----------------

d)

(a² - 8a + 15) / (a - 3) =

(a - 3)(a - 5) / (a - 3) =

a - 5

Answer 2

15x²y / 3y =  5x²

2x³ - 6x² / 2x = x² - 3x

x² - 9 / x + 3 = x -3

a² - 8a+ 15 / a - 3 = a - 5