Question

a) (3×-1) (2×-2y+9) b) (6×-8) (7×-5y-4)​

Answer 1

Explicación paso a paso:

a) (3×-1) (2×-2y+9). = 6x^2 - 6xy + 25x + 2y - 9

2x - 2y + 9

3x - 1

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

- 2x + 2y - 9

6x^2 - 6xy+ 27x

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

6x^2 - 6xy + 25x + 2y - 9

b) (6×-8) (7×-5y-4) = 42x^2 - 30xy + 32x + 40y + 32

7x - 5y - 4

6x - 8

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

56x + 40y + 32

42x^2 - 30xy - 24x

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

42x^2 - 30xy + 32x + 40y + 32