Ex no: 5.1
Factorise the following :
Q.7 a2c2 +4ac +4
Sol:
(ac)2 +2.ac.2 +(2)2
= (ac +2 )2
Q.8
Answer
x2y4 +18xy2 +81
Sol:
(xy2 )2 + 2 .xy2.9 + (9 )2
= (xy2 + 9 )2
Answer.