Question

Factorise:
a). 1.21m-0.16m

Answer 1

$\huge\boxed{\texttt{\fcolorbox{purple}{aqua}{Hey Mate!!!}}}$

$<b><i>$
Solution $\rightarrow$

= (1.1)² - (0.4)²

= (1.1 + 0.4) (1.1 - 0.4)