Odpowiedź:
[tex]W_{1}=4x^2+3x-10\ \ ,\ \ W_{2}=-7x^2-9x+1\ \ ,\ \ W_{3}=-3x^2-6x-9\\\\\\W_{1}+W_{2}=W_{3}\\\\4x^2+3x-10+(-7x^2-9x+1)=-3x^2-6x-9\\\\4x^2+3x-10-7x^2-9x+1=-3x^2-6x-9\\\\-3x^2-6x-9=-3x^2-6x-9\\\\L=P\\\\Prawda\\\\\\W_{1}+W_{3}=W_{2}\\\\4x^2+3x-10+(-3x^2-6x-9)=-7x^2-9x+1\\\\4x^2+3x-10-3x^2-6x-9=-7x^2-9x+1\\\\x^2-3x-19=-7x^2-9x+1\\\\L\neq P\\\\Falsz[/tex]
[tex]W_{1}-W_{3}=W_{2}\\\\4x^2+3x-10-(-3x^2-6x-9)=-7x^2-9x+1\\\\4x^2+3x-10+3x^2+6x+9=-7x^2-9x+1\\\\7x^2+9x-1=-7x^2-9x+1\\\\L\neq P\\\\Falsz[/tex]
