Question

Factorize:-
${9a}^{2} - 12ab + {4b}^{2} - 16$
​

Answer 1

Answer:

$(3a-2b-4)(3a-2b+4)$

Step-by-step explanation:

$9a^2-12ab +4b^2-16$

= $(3a)^2-2(3a)(2b)+(2b)^2-(4)^2$

= $(3a - 2b)^2-(4)^2$

= $(3a-2b-4)(3a-2b+4)$