5x(x-3)=6-2x(用因式分解法算)

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5x(x-3)=6-2x(用因式分解法算)5x(x-3)=6-2x(用因式分解法算)5x(x-3)=6-2x(用因式分解法算)5x(x-3)+2x-6=05x(x-3)+2(x-3)=0(x-3)(5

5x(x-3)=6-2x(用因式分解法算)
5x(x-3)=6-2x(用因式分解法算)

5x(x-3)=6-2x(用因式分解法算)
5x( x - 3 ) + 2x - 6 = 0
5x( x - 3 ) + 2( x - 3 ) = 0
( x - 3 )( 5x + 2 ) = 0
解方程得
x1 = 3
x2 = -2/5

5x(x-3)=6-2x
5x(x-3)+2(x-3)=0
(x-3)(5x+2)=0
x=3或x=-2/5

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