Question

ajudaa! até amanhã!!!

a) (x+7).(x+5)=

b) (y-60).(2Y+4)

c) (2a+3b).(2a+3b)

d) (2x+3).(6x²-5x+7)

e) (10m+5p).(10-5p)

Answer 1

a) (x+7)•(x+5)

x²+5x+7x+35

x²+12x+35

b) (y-60)•(2y+4)

2y²+4y-120y-240

2y²-116y-240

c) (2a+3b)•(2a+3b)

4a²+6ab+6ab+9b²

4a²+9b²+12ab

d) (2x+3)•(6x²-5x+7)

12x³-10x²+14x+18x²-15x+21

12x³+8x²-x+21