Question

спростіть вираз (2x²-3x+5)(6x+3)-4x²(3x-1) СРОЧНО УМОЛЯЮ

Answer 1

Объяснение:

$(2x {}^{2} - 3x + 5)(6x + 3) - 4x {}^{2} (3x - 1) = 12x {}^{3} - 12x {}^{2} + 21x + 15 - 4x {}^{2} (3x - 1) = 12x {}^{3} - 12x {}^{2} + 21x + 15 - 12x {}^{3} + 4x {}^{2} = - 12x {}^{2} + 21x + 15 + 4x {}^{2} = - 8x {}^{2} + 21x + 15$