9 X square + 12 x + 4 minus 16 ysquare
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9x²+12x+4-16y²
9x²-16y²+4+12x
(3x)²-(4y)²+4(1+3x)
By identity a²-b²=(a+b) (a-b)
(3x+4y) (3x-4y) +4(1+3x)
I hope this will help you
9x²-16y²+4+12x
(3x)²-(4y)²+4(1+3x)
By identity a²-b²=(a+b) (a-b)
(3x+4y) (3x-4y) +4(1+3x)
I hope this will help you
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