(m²+3)²-3×(m²+2)/2=17/2 求m 要过程
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(m²+3)²-3×(m²+2)/2=17/2 求m 要过程
(m²+3)²-3×(m²+2)/2=17/2 求m 要过程
(m²+3)²-3×(m²+2)/2=17/2 求m 要过程
2(m²+3)²-3(m²+2)=17
2m^4+12m^2+18-3m^2-6=17
2m^4+9m^2-5=0
(2m^2-1)(m^2+5)=0
m^2+5>0
2m^2-1=0
m^2=1/2
m=±√2/2