bonjour
A = ( 4 a - 3 b)²
= 16 a² - 24 ab + 9 b²
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bonjour
A = ( 4 a - 3 b)²
= 16 a² - 24 ab + 9 b²
(4a-3b)2
=4a2-2*4a*3b+(3b)2
=16a2-24ab+9b