(2x-3)(2x+3)=6-4x

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(2x-3)(2x+3)=6-4x(2x-3)(2x+3)=6-4x(2x-3)(2x+3)=6-4x4x²-9=6-4x4x²+4x-15=0(2x+1)²-1-15=

(2x-3)(2x+3)=6-4x
(2x-3)(2x+3)=6-4x

(2x-3)(2x+3)=6-4x
4x²-9=6-4x
4x²+4x-15=0
(2x+1)²-1-15=0
2x+1=4 或2x+1=-4
x=3/2或x=-5/2

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