Bonjour ,
25 = 5*5 = 5²
25 - (2x+1)²
= (5-2x-1)(5+2x+1)
=(4-2x)(6+2x)
= 2(2-x)2(3+x)
= 4(2-x)(3+x)
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Bonjour ,
25 = 5*5 = 5²
25 - (2x+1)²
= (5-2x-1)(5+2x+1)
=(4-2x)(6+2x)
= 2(2-x)2(3+x)
= 4(2-x)(3+x)