oblicz wartości wyrażeń;3(xdo kwadratu-2x+3)-2(xdo kwadratu -5x-1) dlax=2 2.zad a(2ab=b)-b(a-2ab+a kwadrat)dla a=0,1ib=-10

3(x²-2x+3)-2(x²-5x-1) = dla x=2 2. = 3x²-6x+9-2x²+10x+2 = = x²+4x+11 = = (2,2)² + 4*2,2 + 11 = = 4,84 + 8,8 + 11 = = 24,62 a(2ab-b)-b(a-2ab+a²) = dla a=0,1i b=-10 = 2a²b-ab-ab-2ab²-a²b = = a²b-2ab-2ab² = = ab(a-2-2b)= = 0,1*(-10)[0,1-2-2*(-10)] = = -1(0,1-2+20) = = -(18,1) = = -18,1