Question

Factorise
x² + 8x + 16 ​

Answer 1

Answer:

Correct option is

D

(x−4)(x−4)

x

2

−8x+16=x

2

−2(4)(x)+4

2

=(x−4)

2

...[∵(a−b)

2

=a

2

−2ab+b

2

]

=(x−4)(x−4)

Answer 2

x^2+4x+4x+16=x(x+4)+4(x+4)=(x+4)(x+4)