9×(5x+2)(10+7x)×67×(9x-11)(3x-5)×3(9-5x)×8
= 9×(50x+20+35x+14)×67×(27x^2-45x-33x+55)×3(9-5x)×8
= 9×(85x+34)×67×(27x^2-78x+55)×3(9-5x)×8
= 9×(5755x^2-16630x+11630)×3(9-5x)×8
= 1551900x^2-4474200x+3135400
Ответ: 1551900x^2-4474200x+3135400.
9×(5x+2)(10+7x)×67×(9x-11)(3x-5)×3(9-5x)×8
= 9×(50x+20+35x+14)×67×(27x^2-45x-33x+55)×3(9-5x)×8
= 9×(85x+34)×67×(27x^2-78x+55)×3(9-5x)×8
= 9×(85x+34)×67×(27x^2-78x+55)×3(9-5x)×8
= 9×(85x+34)×67×(27x^2-78x+55)×3(9-5x)×8
= 9×(85x+34)×67×(27x^2-78x+55)×3(9-5x)×8
= 9×(5755x^2-16630x+11630)×3(9-5x)×8
= 1551900x^2-4474200x+3135400
Ответ: 1551900x^2-4474200x+3135400.