Question

преобразуйте в многочлен 4x(2x-1)-(x-3)(x+3)

Answer 1

4x(2x-1)-(x-3)(x+3) =8х²-4х-х²+9=7х²-4х+9

Answer 2

4x (2x-1)-(x-3)(x+3)=8x^2-4x-x^2-3x+3x+9=7x^2-4x+9