Rozwiąż Równanie
1.
a)
b)
c)
d)
e)
f)
a) (x-5)(x-5) = x² - 100x
x²-5x-5x+25=x² - 100x
x²-x²-10x+100x=-25
90x=-25
x=-25/90
b) (3-x)-(x+1/3)=2/9
3-x-x-1/3=2/9
-x-x=2/9+1/3-3
-2x=5/9+3
-2x=32/9
x=-32/18
c) 4(1/2x-3)=(2-x)
2x-12=2-x
2x+x=2+12
3x=14
x=14/3
d) 4(x+2)-(2x-1)=-5
4x+8-2x+1=-5
4x-2x=-5-8-1
2x=-14
x=-7
e) (6+1/3x)(-1/3x+6)+(1/3-4)=4
-2x+36-1/9x²+2x+1/3-4=4
-2x-1/9x²+2x=-36-1/3+4+4
-1/9x²=-28 1/3
1/9x²=85/3
x²=255
x=√255
f) (-4x-3)(4x-3)+8(1-√2x)=1
-16x²+12x-12x+9+8-8√2x=1
-16x²-8√2x=1-9-8
-16x²-8√2x=-16
2x²-√2x=2
Niestety nie wiem jak to dalej rozwiązać.
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a) (x-5)(x-5) = x² - 100x
x²-5x-5x+25=x² - 100x
x²-x²-10x+100x=-25
90x=-25
x=-25/90
b) (3-x)-(x+1/3)=2/9
3-x-x-1/3=2/9
-x-x=2/9+1/3-3
-2x=5/9+3
-2x=32/9
x=-32/18
c) 4(1/2x-3)=(2-x)
2x-12=2-x
2x+x=2+12
3x=14
x=14/3
d) 4(x+2)-(2x-1)=-5
4x+8-2x+1=-5
4x-2x=-5-8-1
2x=-14
x=-7
e) (6+1/3x)(-1/3x+6)+(1/3-4)=4
-2x+36-1/9x²+2x+1/3-4=4
-2x-1/9x²+2x=-36-1/3+4+4
-1/9x²=-28 1/3
1/9x²=85/3
x²=255
x=√255
f) (-4x-3)(4x-3)+8(1-√2x)=1
-16x²+12x-12x+9+8-8√2x=1
-16x²-8√2x=1-9-8
-16x²-8√2x=-16
2x²-√2x=2
Niestety nie wiem jak to dalej rozwiązać.