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= 2 ( 2xkuadrat - 3 ) - 3 ( -3xkuadrat + 5x + 2 )
= 4xkuadrat - 6 + 9xkuadrat - 15x - 6
= 4xkuadrat + 9xkuadrat - 15x - 6 - 6
= 13xkuadrat - 15x - 12
= 4x²-6+9x²-15x-6
= 13x²-15x-12