s=2+5/2+8/(2^2)+(11)/(2^3)

Lösung

s = 2 + \frac{5}{2} + \frac{8}{2 ^{2}} + \frac{11}{2 ^{3}}

s = \frac{63}{8}

Dezimale

s = 7.875

Schritte zur Lösung

s = 2 + \frac{5}{2} + \frac{8}{2 ^{2}} + \frac{11}{2 ^{3}}

Vereinfache

2 + \frac{5}{2} + \frac{8}{2 ^{2}} + \frac{11}{2 ^{3}} : \frac{63}{8}

s = \frac{63}{8}

so l v e f or k, 2 x^{3} + 2 x^{2} - 72 x + k = 0

5 x^{2} - 70 x + 235 = 5 \cdot (x - a)^{2} - b

i - j + 2 kb = 2 i - j, a = 2

so l v e f or x, 3 x = y + 5

2 y - 11 = 19