Question

1.Zamień iloczyny na sumy a)-4(a+2b-4c-1/2d_1/8m) b)-2/5(10x-20y+0,5z-35) c)-(1cała1/3m-8n+2/3k-16z)*3/4 d)(20x-15y+2/3z-5/6p)*(-0,3)

/-kreska ułamkowa

Answer 1

a)

-4(a+2b-4c-1/2d -1/8m)= -4a -8b +16c +2d + 1/2 d

 

 

 

b)

-2/5(10x-20y+0,5z-35)= -4x + 8y - 0,2z + 14

 

 

 

c)

-(1cała1/3m-8n+2/3k-16z)*3/4= - ( 4/3 m - 8n +2/3k - 16z) * 3/4= -m +6n -1/2k +12z

 

 

 

d)

(20x-15y+2/3z-5/6p)*(-0,3) = - 6x + 4,5y -0,2 z + 0,25p