Błagam jak ktoś może chociaż część zadań .... Question from @smateusz1210

pincuknasta11

Odpowiedź:

1. a) xy+x+2y+2

b)6a-2ab+3-b

c)a^3-b^2a-a^2+b^2

d)2xy-6x-y+3

1 votes Thanks 1

smateusz1210 dzięki wielkie

venumplp5n0ah

Zadanie 1

$>Zadanie 2<img src=$

Zadanie 3

$a)\\(t+1)(t^2+2t+3)=1^3+2t^2+3t+t^2+2t+3=t^3+3t^2+5t+3\\\\b)\\(p-2)(3p^2 -5p +1) = 3p^3 - 5p^2 + p = 6p^2 + 10p -2 = 3p^3 - 11p^2 + 11p -2\\\\c)\\(2m-1)(-2m^2 +3m -5) = -4m^3 + 6m^2 - 10m + 2m^2 - 3m + 5 = -4m^3 + 8m^2 - 13m + 5\\\\d)\\(4-5w)(3w^2-w-2) = 12w^2 -4w-8-15w^3+5w^2+10w=-15w^3+17w^2+6w-8$

Zadanie 4

$a)\\P = (x+5)(x-2) = x^2 - 2x + 5x - 10 = x^2 + 3x-10\\\\b)\\P = (x+3)(x-3) : 2 = (x^2 - 3x + 3x -9) : 2 = (x^2 -9) : 2 \\\\c)\\P = (x+x+2)(x+1) : 2 = 2(x+1)(x+1) : 2 = (x + 1)(x+1) = (x+1)^2 = x^2 + 2x +1$

Zadanie 5

$a)\\(x+3)^2=x^2+2x * 3 + 3^2 = x^2+6x+9\\\\b)\\ (a-2)^2 = a^2 - 2a * 2 + 2^2 = a^2 - 4a + 4\\\\c)\\(2x+5)^2 = (2x)^2+2 * 2x * 5 + 5^2 = 4x^2 + 20x + 25$

2 votes Thanks 1

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