Question

Factorise: 4a² + b² - 4ab +8a - 4b +4​

Answer 1

Answer:

(2a+b+2)(2a+b+2)

Step-by-step explanation:

4a²+b²+4ab+8a+4b+4

= 4a²+b²+4+4ab+4b+8a

=(2a)²+b²+2²+2*2a*b+2*b*2+2*2*2a

= (2a+b+2)²

= (2a+b+2)(2a+b+2)