Bonjour,
54 - 18a = 18(3-a)
3x²+x = x(3x+1)
-49+21x = 7(3x-7)
8t²+2t = 2t(4t+1)
-36z+63 = 9(-4z+7)
-x+3x² = x(3x-1)
5b+25 = 5(b+5)
3y²+9y² = 3y²(1+3) = 12y²
4x²+4x+4 = 4(x²+x+1)
9y²-3y+27 = 3(3y²-y+3)
-5x²+10x+15 = 5(-x²+2x+3)
3y³+y² = y²(3y+1)
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Bonjour,
54 - 18a = 18(3-a)
3x²+x = x(3x+1)
-49+21x = 7(3x-7)
8t²+2t = 2t(4t+1)
-36z+63 = 9(-4z+7)
-x+3x² = x(3x-1)
5b+25 = 5(b+5)
3y²+9y² = 3y²(1+3) = 12y²
4x²+4x+4 = 4(x²+x+1)
9y²-3y+27 = 3(3y²-y+3)
-5x²+10x+15 = 5(-x²+2x+3)
3y³+y² = y²(3y+1)