Question

Usuń nawiasy i wykonaj redukcję wyrazów podobnych . 4c-(3c+2)-10c 9y-(8-3y)+16 -(-5c-8)+6-9c-c 5(3z-7)-9(8z-6) 7x-3(5x+2)-6(7+2x) 7x-8--(5x+6) 5x-(2-4x)+8x-7 -4(3x-6)-3(2+7x) -3(5x-4)+8(-3x+2) -5(3y-7)-2(6+4y)+3y

Answer 1

 4c-(3c+2)-10c= 4c - 3c+ 2 = c - 2

 

 9y-(8-3y)+16=  9y - 8 + 3y + 16 = 12y + 8

 -(-5c-8)+6-9c-c = 5c + 8 + 6-9c = -4c + 14

5(3z-7)-9(8z-6)= 15z - 35 - 72z + 54 = -57z + 19

7x-3(5x+2)-6(7+2x)= 15z - 35 - 72 z + 54 = -57z + 19

7x-8--(5x+6) = 7x - 8 +5x-6= 12x - 14

 

 5x-(2-4x)+8x-7 = 5x - 2 + 4x + 8x -7 = 17x - 8

 

 -4(3x-6)-3(2+7x)= -12x + 24 - 6 -21x= -33x + 18

-3(5x-4)+8(-3x+2) = -15x + 12 - 24x + 16 = -39x + 28

 

  -5(3y-7)-2(6+4y)+3y = -15y + 35 - 12 - 8y + 3y = - 20 y + 23

Liczee na naj .

 

 

Answer 2

a) 4c-(3c+2)-10c= 4c - 3c+ 2-10c =2 -9c

b) 9y-(8-3y)+16=  9y - 8 + 3y + 16 = 12y + 8

c) -(-5c-8)+6-9c-c = 5c + 8 + 6-10c = -5c + 14

d) 5(3z-7)-9(8z-6)= 15z - 35 - 72z + 54 = -57z + 19

e) 7x-3(5x+2)-6(7+2x)= 35x²+14x-15x-6-42-12x=35x²-13x-50

f) 7x-8--(5x+6) = 7x - 8 +5x-6= 12x - 14

g) 5x-(2-4x)+8x-7 = 5x - 2 + 4x + 8x -7 = 17x - 8

h) -4(3x-6)-3(2+7x)= -12x + 24 - 6 -21x= -33x + 18

i) -3(5x-4)+8(-3x+2) = -15x + 12 - 24x + 16 = -39x + 28

j) -5(3y-7)-2(6+4y)+3y = -15y + 35 - 12 - 8y + 3y = - 20 y + 23

 

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