展開L2-1-2(8問)
次の式を展開せよ。
-2(x-11)(x+12)
解答○ ×3(x+9)(x+8)
解答○ ×4(x+5)2
解答○ ×6(x+14)(x-15)
解答○ ×-3(x-7)2
解答○ ×5(x+8)(x-8)
解答○ ×-4(x-10)(x+9)
解答○ ×2(x-12)(x+13)
解答○ ×問題と解答
-2(x-11)(x+12)-2x2-2x+264 3(x+9)(x+8)3x2+51x+216 4(x+5)24x2+40x+100 6(x+14)(x-15)6x2-6x-1260 -3(x-7)2-3x2+42x-147 5(x+8)(x-8)5x2-320 -4(x-10)(x+9)-4x2+4x+360 2(x-12)(x+13)2x2+2x-312
