2y^2=5 3x^2=6 9a^2=16 2x^2-25=0 x^2+8x+16=3 x^2-2x+1=4 방정식 을 풀다

2y^2=5 3x^2=6 9a^2=16 2x^2-25=0 x^2+8x+16=3 x^2-2x+1=4 방정식 을 풀다

2y^2=5,y^2=5/2,y=±√(5/2)=±√10/2,y1=√10/2,y2=-√10/2.3x^2=6,x^2=2,x=±√2,x1=√2,x2=-√2.9a^2=16,a^2=16/9,a=±√(16/9)=±4/3,a1=4/3,a2=-4/3.2x^2-25=0,x^2=25/2,x=±√(25/2)=±5√2/2,x1=5√2/2,x2=-5...