Rozwiąż równania:
a)(2x+1)(x-2)-3x+4=2(x²=3x+6)
b)2(x-1)+3(-x+7)=3-(2x+4)
c)7-2(-x+1)+4(x+2)=7-4x+6x+2
d)3(x-7)=4(x+2)-x+7
e)4x+1=4(x+¼)
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a) 2x+17=26-x
2x + x = 26 - 17
3x = 9 /:3
x = 3
b) 11-x=3x+8
-x - 3x = 8 - 11
- 4x = -3 / : -4
x = 3/4
c)-7(x+2)+4=-3x
-7x - 14 + 4 = -3x
-7x + 3x = 10
-4x = 10 /: -4
x = -10/4
x = -2,5
d)-4(1/2x-2)-4=2(-x+2)
-2x + 8 - 4 = -2x + 4
-2x + 2x = 4 -4
0 = 0
brak rozwiązania
e) 2x(x-1)=2(x-1)(x+3)
2x kwadrat - 2x = (2x -2)(x+3)
2x kwadrat - 2x = 2xkwadrat + 6x - 2x - 6
-2x - 6x + 2x = -6
-6x = -6
x = 1
Mam nadzieje że pomogłam . :)