展開L2-2-5(8問)
次の式を展開せよ。
(x+2)2+(x+3)(x-5)
解答○ ×(x+4)(x+3)+(x+2)(x+7)
解答○ ×(x-2)(x-5)+(x+4)(x-3)
解答○ ×(x+7)(x-7)+(x+1)(x-9)
解答○ ×(x-5)2-(x+2)(x-6)
解答○ ×(x+2)(x-8)-(x+4)(x-4)
解答○ ×(x+5)(x+6)-(x+3)(x+9)
解答○ ×(x-8)(x+12)-(x-4)(x-6)
解答○ ×問題と解答
(x+2)2+(x+3)(x-5)2x2+2x-11 (x+4)(x+3)+(x+2)(x+7)2x2+16x+26 (x-2)(x-5)+(x+4)(x-3)2x2-6x-2 (x+7)(x-7)+(x+1)(x-9)2x2-8x-58 (x-5)2-(x+2)(x-6)-6x+37 (x+2)(x-8)-(x+4)(x-4)-6x (x+5)(x+6)-(x+3)(x+9)-x+3 (x-8)(x+12)-(x-4)(x-6)14x-120
