Add the following expressions:
`p^2qr + pq^2r + pqr^2 and - 3pq^2r - 2 pqr^2`

Add the following expressions: p^2 - 7pq - q^2 and - 3p^2-2pq + 7q^2

Add the following expressions: p^2-q +r, q^2 -r+ p and r^2-p+q

Factoris the expression. 3pqr - 6p^(2) q ^(2) r ^(2) - 15 r ^(2)

Find the HCF of 18p^(2)qr , 24pq^(2)r and 27 pqr^(2) .

Find the value of the expressions, when p= -3, q= -1" and "r= 2 4pq^(2)+7qr-6pr

Add : 6p^(2)q - 5pq^(2) -3pq, 8pq^(2)+2p^(2)q -2pq

Perform the division: ( 3 pqr - 6p ^(2) q ^(2) r ^(2))div 3pq

If each pair of the following equations x^2+px+qr=0, x^2+qx+pr=0 and x^2+rx+pq=0 has common root, then the product of the three common roots is (A) 2pqr (B) pqr (C) -pqr (D) none of these

Simplify (pq - qr) ^(2) + 4 pq ^(2) r

Consider the following reactions in which all the reactants and the products are in gasous state 2 PQ hArr P_(2) + Q_(2) , K_(1) = 2.5 xx 10^(5) PQ + 1/2 R_(2) hArr PQR, K_(2) = 5 xx 10^(-3) The value of K_(3) for the equilibrium 1//2 P_(2) + 1//2 Q_(2) + 1//2 R_(2) hArr PQR, is