Odpowiedź:
Szczegółowe wyjaśnienie:
a) (3x-1)(3x+1)
b) (x-7)(x+7)
c) (5n-2)(5n+2)
d) (y-10)(y+10)
e) Δ = 36, x1 = -2, x2 = 4
(x+2)(x-4)
f) Δ = 9, x1 = - 1, x2 = 2
x(x² - x - 2)
x(x+1)(x-2)
g) x(x²-1) = x(x+1)(x-1)
h) x³(x² - 9) = x(x+3)(x-3)
i) x(x² -5) = x(x-√5)(x+√5)
x(x²+1)
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Odpowiedź:
Szczegółowe wyjaśnienie:
a) (3x-1)(3x+1)
b) (x-7)(x+7)
c) (5n-2)(5n+2)
d) (y-10)(y+10)
e) Δ = 36, x1 = -2, x2 = 4
(x+2)(x-4)
f) Δ = 9, x1 = - 1, x2 = 2
x(x² - x - 2)
x(x+1)(x-2)
g) x(x²-1) = x(x+1)(x-1)
h) x³(x² - 9) = x(x+3)(x-3)
i) x(x² -5) = x(x-√5)(x+√5)
x(x²+1)