Practice problem
Which of the following is not equal to
3x(x−2x2+3x3)3x(x - 2x^2 + 3x^3)3x(x−2x2+3x3)?
(3x×x)−2x2+3x3(3x\times x) - 2x^2 + 3x^3(3x×x)−2x2+3x3
(3x×x)+(3x×−2x2)+(3x×3x3)(3x\times x) + (3x\times-2x^2) + (3x\times3x^3)(3x×x)+(3x×−2x2)+(3x×3x3)
3x2−6x3+9x43x^2 - 6x^3 + 9x^43x2−6x3+9x4
9x4−6x3+3x29x^4 - 6x^3 + 3x^29x4−6x3+3x2
Type a concept, like “slope” or “photosynthesis”.