Question

Simplifique:
14x(8+x)
10x-(13+6x)
-(18-5h)
30y-(15y+8)
25h-30+2(h-8)
9k(1-k)-(18k-10)

Answer 1

a)14x(8+x)= 112x+14x², simplificando  112/14= 8x

b)10x-(13+6x) = 10x-13-6x = 10x-6x-13=4x-13

c)-(18-5h) = -18+5h ou 5h-18

d)30y-(15y+8) = 30y-15y-8= 15y-8

h)25h-30+2(h-8)= 25h-30+2h-16= 25h+2h-30-16= 27h-46

i) 9k(1-k)-(18k-10)= 9k-9k²-18k+10= -9k²+9k-18k+10= -9k²-9k+10,simplificando
                                                                           -9k(k-1)+10.