因数分解[計算問題20問×2セット]
因数分解の計算問題です。(展開問題自動作成ツールはこちら)
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因数分解計算問題プリント
問題1
[1] x²-3x-4 = (x+1)(x-4)
[2] x²+8x+16 = (x+4)(x+4)
[3] x²-7x-8 = (x-8)(x+1)
[4] x²-12x+27 = (x-3)(x-9)
[5] x²-2x-3 = (x-3)(x+1)
[6] x²-6x-7 = (x-7)(x+1)
[7] x²+12x+27 = (x+3)(x+9)
[8] x²+10x+21 = (x+3)(x+7)
[9] x²+14x+45 = (x+5)(x+9)
[10] x²-x-20 = (x+4)(x-5)
[11] x²+7x+10 = (x+2)(x+5)
[12] x²-14x+45 = (x-5)(x-9)
[13] x²+3x+2 = (x+1)(x+2)
[14] x²-36 = (x-6)(x+6)
[15] x²-8x+15 = (x-3)(x-5)
[16] x²-14x+48 = (x-6)(x-8)
[17] x²-9x+18 = (x-3)(x-6)
[18] x²+13x+40 = (x+5)(x+8)
[19] x²+13x+40 = (x+5)(x+8)
[20] x²+6x+8 = (x+2)(x+4)
問題2
[1] x²-4x-45 = (x-9)(x+5)
[2] x²-9x+8 = (x-1)(x-8)
[3] x²+7x+10 = (x+2)(x+5)
[4] x²-2x-35 = (x+5)(x-7)
[5] x²-14x+49 = (x-7)²
[6] x²+10x+21 = (x+3)(x+7)
[7] x²-7x-8 = (x-8)(x+1)
[8] x²+9x+8 = (x+1)(x+8)
[9] x²-11x+18 = (x-2)(x-9)
[10] x²+16x+63 = (x+7)(x+9)
[11] x²+3x+2 = (x+2)(x+1)
[12] x²+13x+40 = (x+5)(x+8)
[13] x²-3x-18 = (x-6)(x+3)
[14] x²+8x+7 = (x+7)(x+1)
[15] x²-5x+6 = (x-3)(x-2)
[16] x²+10x+25 = (x+5)²
[17] x²-9 = (x+3)(x-3)
[18] x²+2x-24 = (x+6)(x-4)
[19] x²+3x-54 = (x-6)(x+9)
[20] x²-8x+7 = (x-7)(x-1)