姓名 ______________________日期 ____________得分 ____ / 12因式分解法解一元二次方程练习因式分解法解一元二次方程 · 1–12用因式分解法解下列方程，写出所有解。简单替换1.(x + 9)(x + 2) = 0简单替换2.(x + 8)(x − 7) = 0简单替换3.(x − 5)(x − 5) = 0简单替换4.(x − 8)(x + 4) = 0简单替换5.(x − 3)(x + 1) = 0简单替换6.(x − 1)(x − 3) = 0简单替换7.(x − 8)(x − 3) = 0简单替换8.(x + 6)(x − 4) = 0简单替换9.(x − 7)(x + 3) = 0简单替换10.(x − 6)(x + 2) = 0简单替换11.(x + 4)(x − 7) = 0简单替换12.(x + 1)(x − 9) = 0答案 — 因式分解法解一元二次方程练习因式分解法解一元二次方程1.x = −2 或 x = −92.x = 7 或 x = −83.x = 54.x = 8 或 x = −45.x = 3 或 x = −16.x = 3 或 x = 17.x = 8 或 x = 38.x = 4 或 x = −69.x = 7 或 x = −310.x = 6 或 x = −211.x = 7 或 x = −412.x = 9 或 x = −1由 Math Sheet Studio 制作 · mathsheetstudio.com — 免费可打印数学练习卷