RÓWNANIA
a) (3x-2)² = 4(1-3x)
b) (-2x-2)(2x+2)= (x-2)(x+2)
c) (2x+1)² + (3x-1)(3x+1)=0
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a) (3x-2)²=4(1-3x)
9x²-12x+4=4-12x
9x²=0
x=0
b)(-2x-2)(2x+2)=(x-2)(x+2)
-4x²-4x-4x-4=x²-4
-4x²-8x-4=x²-4
-5x²-8x=0
x(-5x-8)=0
x=0 ∨ x=-1⅗
c) (2x+1)²+(3x-1)(3x+1)=0
4x² +4x+1+9x²-1=0
13x²+4x=0
x(13x+4)=0
x=0 ∨ x=-4/13
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a) (3x-2)²=4(1-3x)
9x²-12x+4=4-12x
9x²=0
x=0
b)(-2x-2)(2x+2)=(x-2)(x+2)
-4x²-4x-4x-4=x²-4
-4x²-8x-4=x²-4
-5x²-8x=0
x(-5x-8)=0
x=0 ∨ x=-1⅗
c) (2x+1)²+(3x-1)(3x+1)=0
4x² +4x+1+9x²-1=0
13x²+4x=0
x(13x+4)=0
x=0 ∨ x=-4/13