2次方程式L1-1-4(6問)
2次方程式を解け
x2-4=0
解答○ ×9x2-144=0
解答○ ×50x2=18
解答○ ×18x2=50
解答○ ×x2-121=0
解答○ ×2x2=128
解答○ ×問題と解答
x2-4=02,-2 9x2-144=04,-4 50x2=1835,-35 18x2=5053,-53 x2-121=011,-11 2x2=1288,-8
x2-4=02,-2 9x2-144=04,-4 50x2=1835,-35 18x2=5053,-53 x2-121=011,-11 2x2=1288,-8
