Question

(5 x+2)3-12 x-4 e 3 y-4.(2 y+3)+6 y-16 a +13 a

Answer 1

(5x+2).3-12x-4=

15x+6-12x-4=

15x+12x-4-6=

27x-10

3y-4.(2y+3)+6y-16a+13a=

3y-8y+12+6y-16a+13a=

3y-8y-6y-16a+13a-12=

-11y-3a-12