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X 2 4x 9 4 0
X 2 4x 9 4 0 pictures 5
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X 2 4x 9 4 0
9 x 4 )+ 2 1 4x )u003d 0
4x 2 9 3 2x x 4 0
x 2 6x 9 )( x 2 4x 4 )u003d 0
y 4x 9 x u003d- 2 0 4
x 4 4x 2 12x 9 0
x 2 4x 9 4 0
