1 Answers
4a4−4a2+9
=4a4+12a2+9−16a2
=(2a2)2+2.2a2.3+(3)2−16a2
=(2a2+3)2−16a2
=(2a2+3)2−(4a)2
=(2a2+4a+3)(2a2−4a+3)
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Answered
4a4−4a2+9
=4a4+12a2+9−16a2
=(2a2)2+2.2a2.3+(3)2−16a2
=(2a2+3)2−16a2
=(2a2+3)2−(4a)2
=(2a2+4a+3)(2a2−4a+3)