wyznacz x ze wzoru:        p przez c = 3x-y/ x  /<---- kreska ułaamkowa       oblicz: (3 di potegi  -1  - 2 do potegi -1) do potegi -2 + 5 do potegi 0 - 1 do potegi 20  

Zadanie 1   p/c = (3x-y)/x x≠0 p*x = (3x-y)*c p*x = 3cx-cy 3cx-px = cy x(3c-p) = cy |:(3c-p) 3c≠p x = cy / (3c-p) [latex]x=frac{cy}{3c-p}[/latex]     Zadanie 2   (3⁻¹ - 2⁻¹)⁻² + 5⁰ - 1²⁰ = (⅓-½)⁻²+1-1 = (2/6 - 3/6)⁻² = (-⅙)⁻² = (-6)² = 36

p/c = (3x-y)/x c(3x-y) = xp 3xc - yc = xp 3xc - xp = yc x(3c-p) = yc   I:(3c-p) x = yc/(3c-p)   (3^-1 - 2^-1)^-2 + 5^0 - 1^20 = = (1/3 - 1/2)^-2 +1-1 = = (2/6 - 3/6)^-2 = = (-1/6)^-2 = = (-6)^2 = 36