Question

Factorise the expressions using suitable identities.
(a) 49-x^2-y^2+2xy
(b)1/16x^2y^2-4/49y^2z^2
(c)(x+y)^2-(a-b)^2
(d)x^5-16x^3

Answer 1

Answer:

c) (

${x + y + a - b}{x + y - {a - b} \\ {{x + y}{a - b}}{x + y}{ - a + b}$