Odpowiedź:
Szczegółowe wyjaśnienie:
x^2 - 2^2 - (36 - 2* 6 * x + x^2) + 36 + 2 * 6 * x + x^2 =
= x^2 - 4 - (36 - 12x + x^2) + 36 + 12x + x^2 =
= x^2 - 4 - 36 + 12x - x^2 + 36 + 12x + x^2 =
= x^2 + 24x - 4 = (-1/2)^2 + 24 * (-1/2) - 4 = 1/4 - 12 = 1/4 - 48/4 = -47/4
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Odpowiedź:
Szczegółowe wyjaśnienie:
x^2 - 2^2 - (36 - 2* 6 * x + x^2) + 36 + 2 * 6 * x + x^2 =
= x^2 - 4 - (36 - 12x + x^2) + 36 + 12x + x^2 =
= x^2 - 4 - 36 + 12x - x^2 + 36 + 12x + x^2 =
= x^2 + 24x - 4 = (-1/2)^2 + 24 * (-1/2) - 4 = 1/4 - 12 = 1/4 - 48/4 = -47/4