Ответ:
9x^2+6x-6x-4-4x^2+4x+1-5x^2-10x+x+2=23
9x^2-4x^2-5x^2+4x-10x+x=23+4-1-2
4x-10x+x=24
-5x=24
x=-24:5
x=-4.8
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Ответ:
9x^2+6x-6x-4-4x^2+4x+1-5x^2-10x+x+2=23
9x^2-4x^2-5x^2+4x-10x+x=23+4-1-2
4x-10x+x=24
-5x=24
x=-24:5
x=-4.8