[" (1) "a^(4)-b^(4)],[" (v) "x^(4)-(x-z)^(4)" (v) "a^(4)-2a^(2)b^(2)+b^(4)],[" (1) "p^(2)+6p+8" (ii) "q^(2)-10q+21quad " (iii) "p^(2)+6p-16]

Factorise the following expressions.( i ) p^(2)+6p+8( ii) q^(2)-10q+21 (iii) p^(2)+6p-16

Factorise the following expressions. (i) p^2 + 6p +8 (ii) q^2-10q+21 (iii) p^2+6p-16

Evaluate: (i) ""^(4)P_(4) (ii) ""^(5)P_(2) (iii) ""^(8)P_(4) (iv) ""^(6)P_(4)

(i) 2P^(2)+9P+9 = 0 (ii) 15Q^(2) + 16Q + 4 = 0

If p = -2, q = - 1 and r = 3, find the value of (i) p^(2) + q^(2) - r^(2) (ii) 2p^(2) - q^(2) + 3r^(2) (iii) p - q - r (iv) p^(3) + q^(3) + r^(3) + 3 pqr (v) 3p^(2) q + 5pq^(2) + 2 pqr (vi) p^(4) + q^(4) - r^(4)

Divide the given polynomial by the given monomial.( i (5x^(2)-6x)-:3x (ii) (3y^(8)-4y^(6)+5y^(4))-:y^(4)( iii) 8(x^(3)y^(2)z^(2)+x^(2)y^(3)z^(2)+x^(2)y^(2)z^(3))-:4x^(2)y^(2)z^(2)(iv)(x^(3)+2x^(2)+3x)-:2x(v)(p^(3)q^(6)-p^(6)q^(3))-:p^(3)q^(3)

Factorise. (i) a^4 - b^4 (ii) p^4 - 81 (iii) x^4-(y+z)^4 (iv) x^4-(x-z)^4 (v) a^2-2a^2b^2 + b^4

Factorise. (i) a^4 - b^4 (ii) p^4 - 81 (iii) x^4-(y+z)^4 (iv) x^4-(x-z)^4 (v) a^2-2a^2b^2 + b^4

Evaluate ( 4p - q) ^(2) - ( 4p + q) ^(2) if p =- 1 and q =2