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。困难替换1.x2 + 3x = 10困难替换2.x2 − 10x = −9困难替换3.x2 + x = 42困难替换4.3x2 − 14x − 5 = 0困难替换5.5x2 + 23x − 10 = 0困难替换6.3x2 − 2x − 8 = 0困难替换7.x2 + 8x = −16困难替换8.5x2 + 14x − 3 = 0困难替换9.x2 + 10x = −16困难替换10.3x2 − 10x − 8 = 0困难替换11.x2 + 4x = 21困难替换12.3x2 + 16x + 16 = 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 = −52.x = 9 或 x = 13.x = 6 或 x = −74.x = 5 或 x = −135.x = 25 或 x = −56.x = 2 或 x = −437.x = −48.x = 15 或 x = −39.x = −2 或 x = −810.x = 4 或 x = −2311.x = 3 或 x = −712.x = −43 或 x = −4由 Math Sheet Studio 制作 · mathsheetstudio.com — 免费可打印数学练习卷