Question

(A) (8x-8)•(2x-3)
(B) (4x-12)-(x+4)
(C) (3+15y)2
(D) (5y-3x)•(2y-2)


Me ajudem pfv ​

Answer 1

Oi...

a)

(8x - 8).(2x - 3)

16x² - 24x - 16x + 24

16x² - 40x + 24

b)

(4x - 12).(x + 4)

4x² + 16x - 12x - 48

4x² + 4x - 48

c)

(3 + 15y)²

(3 + 15y).(3 + 15y)

9 + 45y + 45y + 225y²

9 + 90y + 225y²

d)

(5y - 3x).(2y - 2)

10y² - 10y - 6xy + 6x

Bons estudos.