Wyrażenia algebraiczne.
Zapisz w jak najprostrzej postaci :
a) 3(a+b) + (a-2b) =
b) -4(x-z) - (x+y) =
c) 5(4x-7) + (7-4x) =
d) (4x -y) - 2(x+y) =
e) 2(3x-2y+3z) - 5(x-y-z) =
f) 4x(x-y-z) - 2x(4x-y+z)
g) -3x²(x-⅔y) + 5x(x²-7xy) =
i) -2√2(a+√2b )- 4(a√2 -2b) =
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 3(a+b) + (a-2b) = 3a+3b+a-2b=4a+b
b) -4(x-z) - (x+y) = -4x+4z-x-y=-5x+3z
c) 5(4x-7) + (7-4x) = 20x-35+7-4x=16x-28
d) (4x -y) - 2(x+y) = 4x-y-2x-2y=2x-3y
e) 2(3x-2y+3z) - 5(x-y-z) = 6x-4y+6z-5x+5y+5z= x+y+11z
f) 4x(x-y-z) - 2x(4x-y+z) =4x kwadrat-4xy-4xz-8x kwadrat+2xy-2xz=-4x kwadrat -2xy-6xz
g) -3x²(x-⅔y) + 5x(x²-7xy) = -4x sześcian + 2 x²/y + 5x sześcian - 35x kwadrat y
i) -2√2(a+√2b )- 4(a√2 -2b) = -2√2a - 4b - 4√2a -8b= -6√2a - 12b