Zapisz w jak najprostszej postaci. a) (a+b)-(2a-b)-(a-2b)= b)(3x-y+1)-(x+y)+(y-x)= c) -(kx+ny)-(3kx+3ny)+(5kx-3ny)= d) (2ab+a+3)-(3ab-a+3)= e) (4x²-3x)-(x-0,1x²)-(x²-0,1x)=
.Proszę pomóżcie. Dam naj.
Andrei
A+b-2a+b-a+2b=-2a+4b x-y+1 kx-7ny -ab+2a = a(-b+2) 3,1x²-3,9x=x(3,1x-3,9)
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asia09051996
A) (a+b)-(2a-b)-(a-2b) = a+b-2a+b-a+2b = -2a+4b b) (3x-y+1)-(x+y)+(y-x) = 3x-y+1-x-y+y-x = x-y+1 c) -(kx+ny)-(3kx+3ny)+(5kx-3ny) = -kx-ny-3kx-3ny+5kx-3ny = kx-7ny d) (2ab+a+3)-(3ab-a+3) = 2ab+a+3-3ab+a-3 = -ab+2a e) (4x²-3x)-(x-0,1x²)-(x²-0,1x) = 4x²-3x-x+0,1x²-x²+0,1x = 3,1x²-3,9x . Myśle że dobrze_;P ;**
x-y+1
kx-7ny
-ab+2a = a(-b+2)
3,1x²-3,9x=x(3,1x-3,9)
b) (3x-y+1)-(x+y)+(y-x) = 3x-y+1-x-y+y-x = x-y+1
c) -(kx+ny)-(3kx+3ny)+(5kx-3ny) = -kx-ny-3kx-3ny+5kx-3ny = kx-7ny
d) (2ab+a+3)-(3ab-a+3) = 2ab+a+3-3ab+a-3 = -ab+2a
e) (4x²-3x)-(x-0,1x²)-(x²-0,1x) = 4x²-3x-x+0,1x²-x²+0,1x = 3,1x²-3,9x
. Myśle że dobrze_;P
;**