Question

a) (3x + 2) (7x + 5) =
b) (10x + 4) (3x - 8)
c) (6x² + 4x) (10x + 3) =
d (4x² - 8x) (9x + 4) =

Answer 1

Respuesta:

A) (3x + 2) (7x + 5) =

(3x)(7x) +(2+5)(x) +(5)(2)

21x² +7x +10.

b) (10x + 4) (3x - 8)

30x² - 4x - 32.

c) (6x² + 4x) (10x + 3) =

60x³ +58x² +12x.

6x²+4x

10x +3

-----------

60x³ +40x²

____+18x² +12x

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

60x³ +58x² +12x

d (4x² - 8x) (9x + 4) =

36x³ - 56x²- 32x

Saludos❤️