初三解方程-求简便解法3(x-5)^2-14=2(x-1)(x+2)=4

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初三解方程-求简便解法3(x-5)^2-14=2(x-1)(x+2)=4初三解方程-求简便解法3(x-5)^2-14=2(x-1)(x+2)=4初三解方程-求简便解法3(x-5)^2-14=2(x-1

初三解方程-求简便解法3(x-5)^2-14=2(x-1)(x+2)=4
初三解方程-求简便解法
3(x-5)^2-14=2
(x-1)(x+2)=4

初三解方程-求简便解法3(x-5)^2-14=2(x-1)(x+2)=4
1.3(x-5)^2-14=2
3(x-5)^2=16
(x-5)^2=16/3
x-5=+-4/根号3
x1=5+4/根号3,x2=5-4/根号3.
2.(x-1)(x+2)=4
x^2+x-6=0
(x-2)(x-3)=0
x1=2,x2=-3

3(x-5)^2-14=2
3(x-5)^2=16
(x-5)²=16/3
x-5=±√(16/3)=±(4/3)√3
x=5±[(4/3)√3]
x1=5+[(4/3)√3
x2=5-[(4/3)√3
(x-1)(x+2)=4
x²+x-2=4
x²+x-6=0
(x+3)(x-2)=0
x+3=0或x-2=0
x1=-3, x2=2