erweitern (2pq-9r)(9pq+2r)

Lösung

erweitern

(2 pq - 9 r) (9 pq + 2 r)

18 p^{2} q^{2} - 77 pq r - 18 r^{2}

Schritte zur Lösung

(2 pq - 9 r) (9 pq + 2 r)

Apply FOIL method

(2 pq - 9 r) (9 pq + 2 r) : 18 p^{2} q^{2} - 77 pq r - 18 r^{2}

= 18 p^{2} q^{2} - 77 pq r - 18 r^{2}

s im pl i f y 6 x^{2} + 6 x + 2 - (2 x - 1)^{2}

f a c t or 5 x^{2} + 31 x + 30

s im pl i f y 2^{2} + 2^{2}

e x p an d (4 x^{3} + y^{3})^{2}

f a c t or 81 x^{4} y^{7} z + 24 x y z^{4}