解3x²-4=(√3x)²-2²=(√3x-2)(√3x+2)16x²-11=(4x)²-(√11)²=(4x-√11)(4x+√11)x²-2√2x+2=x²-2×√2×x+(√2)²=(x-√2)²x^4-36=(x²)²-6²=(x...