因式分解解下列方程:(2a-1)²=0 (2x-5)²=9 4x²-(x-1)²=0

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因式分解解下列方程:(2a-1)²=0 (2x-5)²=9 4x²-(x-1)²=0

(2a-1)²=0
2a-1=0
a=1/2
(2x-5)²=9
(2x-5)²-3²=0
(2x-5+3)(2x-5-3)=0
(2x-2)(2x-8)=0
x=1 x=4
4x²-(x-1)²=0
(2x-x+1)(2x+x-1)=0
(x+1)(3x-1)=0
x=-1 x=1/3

(2a-1)²=0 2a-1=0 a=0.5
(2x-5)²=9 (2x-5)^2-9=0 (2x-5+3)(2x-5-3)=0 x=1或x=4
4x²-(x-1)²=0 (2x+x-1)(2x-x+1)=0 x=1/3或x=-1