Matematyka z plusem 1. Zadanie 6/158. ( c i d ) c) x(x^2+2x+1) - (- 4x^3 + 8x^2 - 6) : 2 =... d) 12b*b-1/4 + 14* b^2- 2b/ 21 - b-b*2/3 = .. ( jak by co to / jest do kreska ułamkowa, * znak mnożenia, a ^ to do kwadratu ) Zad. 7/158 ( b ) b) A*(B*C)= ... PROSZE O ODPOWIEDZI, DAJE NAJ.!
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c) = x^3 + 2x + x - ( - 4x^3 + 8x^2 - 6 ) : 2= x^3 + 2x^2 + x - ( -4x^3 + 8x^2 - 6) :2 = x^3 + 2x^2 + x - ( - 2x"^3 + 8x^2 - 3)= x^3 + 2x^2 +x +2x^3 - 4x^2 + 3 = 3x^3 - 2x^2 = x = 3