Question

Factorise the following:
telll fast​

Answer 1

Answer:

This is a perfect square trinomial.

It can be recognised because it is of the form:

a2−2ab+b2=(a−b)2

with a=3x and b=4

9x2−24x+16=(3x)2−(2⋅(3x)⋅4)+42

=(3x−4)2