Zapisz w jak naprostszej postaci.
a) (x-2)-(2-x)
b) (a+b)+(2a-b)-(a-2b)
c) (3x-y+1)-(x+y)+(y-x)
d) -(2a do kwadratu-3ab)-(2b-3a do kwadratu)+(-ab-b)
Wykonaj działania:
a) a+(a-b) b)2x-(x+4) c) 7-(-x+6) d)-(x+4)+(x-5) e) 1-(t+p)-(t-2)
f) -(-y+2)+(-2y-4)
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Zapisz w jak naprostszej postaci.
a) (x-2)-(2-x)=x - 2 - 2 +x = 2x - 4
b) (a+b)+(2a-b)-(a-2b) = a + b + 2a - b - a +2b = 2a +2b
c) (3x-y+1)-(x+y)+(y-x)=3x - y + 1 - x - y + y - x = x -y +1
d) -(2a²-3ab)-(2b-3a²)+(-ab-b)= -2a² +3ab - 2b +3a² -ab -b = a²+2ab -3b
Wykonaj działania:
a) a+(a-b)=a+a-b=2a-b
b)2x-(x+4)=2x-x-4=x-4
c) 7-(-x+6)=7+x-6=x+1
d)-(x+4)+(x-5)=-x-4+x-5=-9
e) 1-(t+p)-(t-2)=1-t-p-t+2=-2t-p+3
f) -(-y+2)+(-2y-4) =y-2-2y-4=-y-6
a) (x-2)-(2-x)=x-2-2+x=2x-4
b) (a+b)+(2a-b)-(a-2b)=a+b+2a-b-a+2b=2a+2b
c) (3x-y+1)-(x+y)+(y-x)=3x-y+1-x-y+y-x=x-y+1
d)-(2a²-3ab)-(2b-3a²)+(-ab-b)=-2a²+3ab-2b+3a²-ab-b=a²+2ab-3b
2. a) a+(a-b)=a+a-b=2a-b
b)2x-(x+4)=2x-x-4=x-4
c)7-(-x+6)=7+x-6=x+1
d)-(x+4)+(x-5) =-x-4+x-5=-9
e)1-(t+p)-(t-2)=1-t-p-t+2=3-2t-p
f)-(-y+2)+(-2y-4)=y-2-2y-4=-y-6
mam nadzieje, że pomogłem