5m Zen
9 5x 4x 2 0
9 5x 4x 2 0 pictures 5
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9 5x 4x 2 0
u0440u0435u0448u0438u0442u0435 u0443u0440u0430u0432u043Du0435u043Du0438u0435 9 5x 4x 2 0
5x 1 )( 4x 2 9 )u003d 0
4x ^ 2 - 5x - 12 u003d 0 9
solve 5x 2 4x 9 0
5x^2+4x-9u003d0 factored
4x 4 5x 2 9 0
9 5x 4x 2 0
