Question

Factorize each of the following algebraic expression:
9a² − 24ab + 16b²

Answer 1

$$\begin{gathered} 9a^2-24ab+16b^2 \\ =(3a{)}^2-2\times 3a\times 4b+(4b{)}^2 \\ =(3a-4b{)}^2 \\ =(3a-4b\left)\right(3a-4b) \end{gathered}$$