Factorise ces expression Merci
A= 36 - 25x²
B= 100 + 60x + 9x²
C= 2i (i+1) + 2i (2+i)
D = b² - 10b + 25
E= (2-x²) + (2-x)(9+x)
F=(5x+1)² - 81
G= (7d+2)²-(3d +4)²
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Factorise ces expression Merci
A= 36 - 25x²
B= 100 + 60x + 9x²
C= 2i (i+1) + 2i (2+i)
D = b² - 10b + 25
E= (2-x²) + (2-x)(9+x)
F=(5x+1)² - 81
G= (7d+2)²-(3d +4)²
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B=(10+3x)^2
C=2i(i+1+2+i)=2i(2i+3)
D=(b-5)^2
E=(2-x)(2-x+9+x)=(2-x)11
F=(5x+1-9)(5x+1+9)=(5x-8)(5x+10)
G=(7d+2-3d-4)(7d+2+3d+4)=(4d-2)(10d+6)
A = (6 + 5x)(6 - 5x)
B = (3x + 10)²
C = 2i (i +1+2+ i) = 2i (2i + 3)
D = (b - 5)²
E = (2-x) [(2-x) + (9+x)] = 11 (2-x)
F = (5x +1 - 9) (5x +1 + 9) = (5x -8) (5x + 10)
G = [(7d+2) + (3d+4)] [(7d+2) - (3d+4)] = (10d+7) (4d-2)