5^2-2^2=x^2

Lösung

5^{2} - 2^{2} = x^{2}

x = 21, x = - 21

Dezimale

x = 4.58257 \dots, x = - 4.58257 \dots

Schritte zur Lösung

5^{2} - 2^{2} = x^{2}

Tausche die Seiten

x^{2} = 5^{2} - 2^{2}

Vereinfache

5^{2} - 2^{2} : 21

Für

x^{2} = f (a)

sind die Lösungen

x = f (a), - f (a)

x = 21, x = - 21

z^{2} - 3^{\frac{1}{2}} z - 6 = 0

so l v e f or x, x^{2} - 3 x y + y^{1} = 1

x^{2} + 4 - 8 = 0

5 x^{2} - 9 x - 2 = 2 x

2 x^{2} - 450 = 0