用直接开放法解下列方程!(1).9(2x-1)^2-16=0(2).(x+2)^2=(2x+3)^2(3).(x+1)^2-12=0(4).(6x-1)^2=25(5).(x+1)^2=(1-2x)^2(6).(50+t)^2=100(7).7-2x^2=-15

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用直接开放法解下列方程!(1).9(2x-1)^2-16=0(2).(x+2)^2=(2x+3)^2(3).(x+1)^2-12=0(4).(6x-1)^2=25(5).(x+1)^2=(1-2x)^2(6).(50+t)^2=100(7).7-2x^2=-15

用直接开放法解下列方程!(1).9(2x-1)^2-16=0(2).(x+2)^2=(2x+3)^2(3).(x+1)^2-12=0(4).(6x-1)^2=25(5).(x+1)^2=(1-2x)^2(6).(50+t)^2=100(7).7-2x^2=-15
用直接开放法解下列方程!
(1).9(2x-1)^2-16=0
(2).(x+2)^2=(2x+3)^2
(3).(x+1)^2-12=0
(4).(6x-1)^2=25
(5).(x+1)^2=(1-2x)^2
(6).(50+t)^2=100
(7).7-2x^2=-15

用直接开放法解下列方程!(1).9(2x-1)^2-16=0(2).(x+2)^2=(2x+3)^2(3).(x+1)^2-12=0(4).(6x-1)^2=25(5).(x+1)^2=(1-2x)^2(6).(50+t)^2=100(7).7-2x^2=-15
(1).9(2x-1)^2-16=0
(2x-1)^2=16/9
2x-1=±4/3
x=7/6,x=-1/6
(2).(x+2)^2=(2x+3)^2
x+2=±(2x+3)
x+2=2x+3或x+2=-2x-3
x=-1,x=-5/3
(3).(x+1)^2-12=0
(x+1)^2=12
x+1=±2√3
x=1±2√3
(4).(6x-1)^2=25
6x-1=±5
x=1,x=-2/3
(5).(x+1)^2=(1-2x)^2
x+1=±(1-2x)
x+1=1-2x,x+1=-1+2x
x=0,x=2
(6).(50+t)^2=100
50+t=±10
t=-40,t=-60
(7).7-2x^2=-15
2x^2=22
x^2=11
x=±√11

(1)。9(2x-1)^2-16=0。(2x-1)^2=16/9.2x-1=±4/3.x1=7/6,x2=-1/6.
(2)。(x+2)^2=(2x+3)^2.x+2=±(2x+3).x1=-1,x2=-5/3.
(3)。(x+1)^2-12=0.(x-1)^2=12.x-1=±2根号3.x1=1+2根号3,x2=1-2根号3.
(4)。(6x-1)^2=25。6x-1=±...

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(1)。9(2x-1)^2-16=0。(2x-1)^2=16/9.2x-1=±4/3.x1=7/6,x2=-1/6.
(2)。(x+2)^2=(2x+3)^2.x+2=±(2x+3).x1=-1,x2=-5/3.
(3)。(x+1)^2-12=0.(x-1)^2=12.x-1=±2根号3.x1=1+2根号3,x2=1-2根号3.
(4)。(6x-1)^2=25。6x-1=±5.x1=1,x2=-2/3.
(5)。(x+1)^2=(1-2x)^2.x+1=±(1-2x).x1=0,x2=2.
(6)。(50+t)^2=100.50+t=±10.t1=-40,t2=-60.
(7)。7-2x^2=-15 .2x^2=22.x^2=11.x=±根号11.

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