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a ) 5x+3 =8
b) 4x-14=-82
c) 10(3x+2)=70
d)12(2x-)=36
e)4x+6=7x+9
f)7z+3√3=4(z+√3)
g)3(2x-1)=5[3x-(2-x)]
h)2(3x-7)-(6-x)=4-(-x+6)
i)-11x+6(x-2)=4x-7(5-2x)
j)3x/5 - xi3/2=x+2/3 tu sa tylko ulamki
k)x/5 -6=z-4 x/5 to jest ulamek
l)y-3/12+y-/6=y+2/9-1 Ulamki
m) (x+1)² - 2(x-2)²=-(x-2)(x+2)
n) 3(x+6)+(x+√3)(x-√3)=(x+2)(x-2)
o)(x-1/2)²+(x+1/2)²=2(x-√6)(x+√6)
p)y(y-6)+(y-3)(y+5)=(√2y+1)²
r)(x+√2)²-(x-√2)²=2(x-1)
²-znak potegi
√-pierwiastek z ..
/-ulamek
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a)5x+3=8 /-3 5x=5 x=1
b)4x-14=-82/+14 4x=68 x=17
c)30x + 20=70/-20 30x=50 x=3/5
a ) 5x+3 =8
5x = 8-3
5x = 5
x = 1
b) 4x-14=-82
4x = -82+14
4x = -68
x = -19
c) 10(3x+2)=70
3x+2 = 7
3x = 7-2
3x = 5
x = 5/3
d)12(2x-)=36
2x-... = 3
tu czegoś nie dopisałeś chyba, bo po minusie nie zamyka się nawiasu
e)4x+6=7x+9
4x - 7x = 9 - 6
-3x = 3
x = -1
f)7z+3√3=4(z+√3)
7z+3√3 = 4z+4√3
7z-4z = 4√3-3√3
3z = √3
z = √3/3
g)3(2x-1)=5[3x-(2-x)]
6x - 3 = 5(3x-2+x)
6x-3 = 5(4x-2)
6x - 3 = 20x - 10
-3+10 = 20x-6x
14x = 7
x = 7/14
x = 1/2
h)2(3x-7)-(6-x)=4-(-x+6)
6x - 14 - 6 + x = 4 + x - 6
7x - 20 = x -2
7x-x = -2 + 20
6x = 18
x = 3
i)-11x+6(x-2)=4x-7(5-2x)
-11x + 6x - 12 = 4x - 35 + 14x
-5x - 12 = 18x - 35
-12 + 35 = 18x + 5x
23x = 23
x = 1
j)3x/5 - xi3/2=x+2/3 tu sa tylko ulamki
"i" chyba tam nie ma, chyba to pomyłka (?)
3x/5 - x - ... = 2/3
-2x/5 - ... = 2/3
k)x/5 -6=z-4 x/5 to jest ulamek
x - 30 = 5z - 20
x - 5z = -20 + 30
x - 5z = 10
l)y-3/12+y-/6=y+2/9-1 Ulamki
znów coś źle, z tym "y-/6"
y - 1/4 + y .../6 = y + 2/9 - 1
y = 2/9 - 1 + 1/4 + .../6
y = -28/36 + 9/36 + .../6
y = -19/36 + .../6
m) (x+1)² - 2(x-2)²=-(x-2)(x+2)
x² + 1 + 2x - 2(x² + 4 - 4x) = -(x² - 4)
x² + 1 + 2x - 2x² - 8 + 8x = -x² + 4
-7 + 10x = 4
10x = 4 + 7
x = 11/10
n) 3(x+6)+(x+√3)(x-√3)=(x+2)(x-2)
3x + 18 + x² - 3 = x² - 4
3x + 15 = -4
3x = -4 - 15
3x = -19
x = -19/3
o)(x-1/2)²+(x+1/2)²=2(x-√6)(x+√6)
x² + 1/4 - x/2 = 2(x² - 6)
x² + 1/4 - x/2 = 2x² - 18
x² - 2x² - x/2 = -18 - 1/4
-x² - x/2 + 18,25 = 0
p)y(y-6)+(y-3)(y+5)=(√2y+1)²
y² - 6² + y² - 15 - 3y + 5y = 2y² + 1 + 2√2y
-36 - 15 + 2y = 1 + 2√2y
2y - 2√2y = 52
r)(x+√2)²-(x-√2)²=2(x-1)
x² + 2 + 2x√2 - (x² + 2 - 2x√2) = 2x - 2
x² + 2 + 2x√2 - x² - 2 + 2x√2 = 2x - 2
4x√2 - 2x = 2
troche malo te 6 pkt na tyle meczenia sie ;///