1.

4a^2-12a+9-49b^2 PLEASE DO IT Its Urgent I will mark u as brainlist

Answer»

(2A)^2-2(2a)(3)+(3)^2-(7b)^2
ACCORDING to the EQUATION (a-B)^2
(a-b)^2=(a)^2-2ab+(b)^2
(2a-3)^2-(7b)^2
according to (a)^2-(b)^2
(a)^2-(b)^2=(a+b)(a-b)
(2a-3+7b)(2a-3-7b)


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