用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x+3)∧2=4(2x+3) ⑷2(x-3)∧2=x∧2-9

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/19 03:16:26
用因式分解法解下列方程:⑴(4x-1)(5x+7)=0⑵3x(x-1)=2-2x⑶(2x用因式分解法解下列方程:⑴(4x-1)(5x+7)=0⑵3x(x-1)=2-2x⑶(2x+3)∧2=4(2x+3

用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x+3)∧2=4(2x+3) ⑷2(x-3)∧2=x∧2-9
用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x
用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x+3)∧2=4(2x+3) ⑷2(x-3)∧2=x∧2-9

用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x用因式分解法解下列方程:⑴(4x-1)(5x+7)=0 ⑵3x(x-1)=2-2x ⑶(2x+3)∧2=4(2x+3) ⑷2(x-3)∧2=x∧2-9
⑴(4x-1)(5x+7)=0
4x-1=0
x=1/4
或者5x+7=0
x=-7/5
⑵3x(x-1)=2-2x
3x(x-1)+2(x-1)=0
(x-1)(3x+2)=0
x-1=0
x=1
或者3x+2=0
x=-2/3
⑶(2x+3)∧2=4(2x+3)
(2x+3)^2-4(2x+3)=0
(2x+3)(2x+3-4)=0
(2x+3)(2x-1)=0
2x+3=0
x=-3/2
或者2x-1=0
x=1/2
⑷2(x-3)∧2=x∧2-9
2(x-3)^2-(x+3)(x-3)=0
(x-3)[2(x-3)-(x+3)]=0
(x-3)(x-9)=0
x-3=0
x=3
或者x-9=0
x=9