因式分解3a²-2b² a^4-6a^2+9(1)3a²-2b²(2)a^4-6a²+9
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因式分解3a²-2b² a^4-6a^2+9(1)3a²-2b²(2)a^4-6a²+9
因式分解3a²-2b² a^4-6a^2+9
(1)3a²-2b²
(2)a^4-6a²+9
因式分解3a²-2b² a^4-6a^2+9(1)3a²-2b²(2)a^4-6a²+9
(1)3a²-2b²
=(√3a)²-(√2b)²
=(√3a+√2b)(√3a-√2b)
(2)a^4-6a²+9
=(a²-3)²
=(a+√3)²(a-√3)²
是在实数范围内因式分解吧
3a²-2b²=(√3a-√2b)(√3a+√2b)
a^4-6a^2+9=(a^2-3)²=(a-√3)²(a+√3)²
(1)=(√3a+√2b)(√3a-√2b)
(2)=(a∧2-3)∧2