bonjour
a² - b² = (a - b)(a + b) différence de 2 carrés
A(x) = x² - 16 = x² - 4² = (x - 4)(x + 4)
B(x) = 121 - x² = 11² ( x² = (11 - x)(11 + x)
C(x) = 1 - x² = 1² - x² = (1 - x)(1 + x)
D(x) = x² - 144 = x² - 12² = (x -12)(x + 12)
E(x) = 64x² - 25 = (8x)² - 5² = (8x - 5)8x + 5)
F(x) = 36x² - 16 = (6x)² - 4² = (6x - 4)(6x + 4)
G(x)= 1 - 100x² = 1 - (10x)² = (1 - 10x)(1 + 10x)
H(x) = -9 + x² = x² - 9 = x² - 3² = (x - 3)(x + 3)
J(x) = x² - 13 = x² - (√13)² = (x - √13)(x + √13)
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bonjour
a² - b² = (a - b)(a + b) différence de 2 carrés
A(x) = x² - 16 = x² - 4² = (x - 4)(x + 4)
B(x) = 121 - x² = 11² ( x² = (11 - x)(11 + x)
C(x) = 1 - x² = 1² - x² = (1 - x)(1 + x)
D(x) = x² - 144 = x² - 12² = (x -12)(x + 12)
E(x) = 64x² - 25 = (8x)² - 5² = (8x - 5)8x + 5)
F(x) = 36x² - 16 = (6x)² - 4² = (6x - 4)(6x + 4)
G(x)= 1 - 100x² = 1 - (10x)² = (1 - 10x)(1 + 10x)
H(x) = -9 + x² = x² - 9 = x² - 3² = (x - 3)(x + 3)
J(x) = x² - 13 = x² - (√13)² = (x - √13)(x + √13)