1.1/52.(2+x)∧2-9＝4+x∧2+4x－9＝(x－1)(x＋5)＝0 x1＝1 x2＝-53.x∧2-4x+4-9-4x∧2+12x=-3x∧2+8x-5=(x-5/3)(x-1)=0 x1=5/3 x2=13.(x-2)∧2＝(3-2x)∧2说明x-2=3-2x或x-2＝2x-3解得x1=5/3 x2＝14.x∧2-3√2x=(x-3√2)x=0x1=3√2 x2=0打了好多字，望采纳
