Question

Can someone help me pliz ​

Answer 1

The correct option is C

Explanation:

81x²+72x+16

We have to break the middle term:

If we multiply 81 by 16 we get 1296:

The same answer we get when we multiply 36 by 36:

36*36=1296

And if we add 36+36 then we get the middle term which is 72.

So,

=81x²+72x+16

=81x²+36x+36x+16

=9x(9x+4)+4(9x+4)

=(9x+4)(9x+4)

Thus the correct option is C ....