代入L2-1-3(6問)
x=5のとき次の式の値を求めよ
4x2-9
解答○ ×2x2+7
解答○ ×3x2+1x+4
解答○ ×5x2-8x-15
解答○ ×-4x2+7x+13
解答○ ×-2x2+9x-10
解答○ ×問題と解答
4x2-991 2x2+757 3x2+1x+484 5x2-8x-1570 -4x2+7x+13-52 -2x2+9x-10-15
4x2-991 2x2+757 3x2+1x+484 5x2-8x-1570 -4x2+7x+13-52 -2x2+9x-10-15
