pomóżcie i rozwiążcie bo tego nie rozumiem
583.
(x-2)(x+2)=3x
x²+2x-2x-4=3x
2x-2x-3x=-4-x²
-3x=-4-x²/:(-3)
x=-4-x²: -3
584.
(3x-2)²=(2x+3)²
9x²-4=4x²+9
9x²-4x²=9+4
5x²=13/:5
x²=13:5
x=√13:5
589.
x(x-2)>2(x-2)
x²-2x>2x-4
x²>2x+2x-4
x²>4x-4
590.
x(x+2)>4(x-2)
x²+2x >4x-8
x²>-2x+4x-8
x²>2x-8
3.30
a) (x+1)(2x-1)>0
2x²-x+2x-1>0
2x²>0+x-2x+1
2x²>1-x/:2
x²>(1-x):2
b) (x-4)² ≥ 0
x²-16≥0
x²≥ 0+16
x²≥16
c) (x-3)(5-x)>0
5x-x²-15+3x>0
-x²>-5x-3x+0+15
-x²>-2x+15/:(-1)
x²<2x-15
d) 6x(7x-3x)≤0
42x²-18x²≤0
24x²≤0/:24
x²≤0
e) 9-4x²>0
-4x²>0-9
-4x²>-9 /: (-4)
x²<-9:-4
f) (x-5)²-2(x-5)≤0
x²+25-2x+10≤0
x²≤0-10-25+2x
x²≤-35+2x
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583.
(x-2)(x+2)=3x
x²+2x-2x-4=3x
2x-2x-3x=-4-x²
-3x=-4-x²/:(-3)
x=-4-x²: -3
584.
(3x-2)²=(2x+3)²
9x²-4=4x²+9
9x²-4x²=9+4
5x²=13/:5
x²=13:5
x=√13:5
589.
x(x-2)>2(x-2)
x²-2x>2x-4
x²>2x+2x-4
x²>4x-4
590.
x(x+2)>4(x-2)
x²+2x >4x-8
x²>-2x+4x-8
x²>2x-8
3.30
a) (x+1)(2x-1)>0
2x²-x+2x-1>0
2x²>0+x-2x+1
2x²>1-x/:2
x²>(1-x):2
b) (x-4)² ≥ 0
x²-16≥0
x²≥ 0+16
x²≥16
c) (x-3)(5-x)>0
5x-x²-15+3x>0
-x²>-5x-3x+0+15
-x²>-2x+15/:(-1)
x²<2x-15
d) 6x(7x-3x)≤0
42x²-18x²≤0
24x²≤0/:24
x²≤0
e) 9-4x²>0
-4x²>0-9
-4x²>-9 /: (-4)
x²<-9:-4
f) (x-5)²-2(x-5)≤0
x²+25-2x+10≤0
x²≤0-10-25+2x
x²≤-35+2x