已知实数a,b分别满足a^2-6a 4=0,b^2-6b 4=0,且a不等于b
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已知实数a,b分别满足a^2-6a4=0,b^2-6b4=0,且a不等于b已知实数a,b分别满足a^2-6a4=0,b^2-6b4=0,且a不等于b已知实数a,b分别满足a^2-6a4=0,b^2-6
已知实数a,b分别满足a^2-6a 4=0,b^2-6b 4=0,且a不等于b
已知实数a,b分别满足a^2-6a 4=0,b^2-6b 4=0,且a不等于b
已知实数a,b分别满足a^2-6a 4=0,b^2-6b 4=0,且a不等于b
由题可知
a、b是方程x²-6x+4=0的两根,
(x^2-6x+9)=5
(x+3)^2=5
a=√ 5-3
b=-√ 5-3