9x∧2+4x-2因式分解

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9x∧2+4x-2因式分解

9x∧2+4x-2
=[(3x)²+2*3x*2/3+(2/3)²]-22/9
=(3x+2/3)²-(√22/3)²
=(3x+2/3+√22/3)(3x+2/3-√22/3)
=[3x+(2+√22)/3][3x+(2-√22)/3]