2次方程式L1-2-2(6問)
2次方程式を解け
x2+14x=-49
解答○ ×2x2-4x+2=0
解答○ ×2x2+16x+32=0
解答○ ×3x2+30x=-75
解答○ ×4x2+16x+16=0
解答○ ×x2-24x=-144
解答○ ×問題と解答
x2+14x=-49-7 2x2-4x+2=01 2x2+16x+32=0-4 3x2+30x=-75-5 4x2+16x+16=0-2 x2-24x=-14412
x2+14x=-49-7 2x2-4x+2=01 2x2+16x+32=0-4 3x2+30x=-75-5 4x2+16x+16=0-2 x2-24x=-14412
