faktorisieren 7x^2+(-4)

Lösung

faktorisieren

7 x^{2} + (- 4)

(7 x + 2) (7 x - 2)

Schritte zur Lösung

7 x^{2} + (- 4)

Schreibe

7 x^{2} + (- 4)

um:

(7 x)^{2} + 2^{2}

= (7 x)^{2} + 2^{2}

Wende Formel zur Differenz von zwei Quadraten an:

x^{2} - y^{2} = (x + y) (x - y)

(7 x)^{2} + 2^{2} = (7 x + 2) (7 x - 2)

= (7 x + 2) (7 x - 2)

f a c t or sec^{2} (+ (x + c))

f a c t or (x + h)^{2} + 2 (x + h) + 1

f a c t or 2.565 x + (- 12.44025)

f a c t or x 3 + x + x 2 + 1 + a 2 + a 2 x

f a c t or a x^{2} - b x^{2} + 3 a - 3 b