Odpowiedź :
Odpowiedź:
a) y=x² + 4x -6x - 24 = x²-2x-24
b) y=x²-2x+10x - 20 = x²-8x-20
c) y= (5x-10)(x-1) = 5x²-5x-10x+10 = 5x²-15x+10
d) y= (-2x-2)(x+3)=-2x²-6x-2x-6=-2x²-8x-6
e) y= (1/2x+1)(x-4)= 1/2x²-2+x-4=1/2x²+x-6
f) y= (2/3x-2)2 = 4/3x - 4
Szczegółowe wyjaśnienie:
Odpowiedź:
[tex]a)\\\\y=(x-6)(x+4)=x^2+4x-6x-24=x^2-2x-24\\\\b)\\\\y=(x+10)(x-2)=x^2-2x+10x-20=x^2+8x-20\\\\c)\\\\y=5(x-2)(x-1)=(5x-10)(x-1)=5x^2-5x-10x+10=5x^2-15x+10\\\\d)\\\\y=-2(x+1)(x+3)=(-2x-2)(x+3)=-2x^2-6x-2x-6=-2x^2-8x-6\\\\e)\\\\y=\frac{1}{2}(x+2)(x-4)=(\frac{1}{2}x+1)(x-4)=\frac{1}{2}x^2-2x+x-4=\frac{1}{2}x^2-x-4\\\\f)\\\\y=\frac{2}{3}(x-3)^2=\frac{2}{3}(x^2-6x+9)=\frac{2}{3}x^2-4x+6[/tex]