Question

(3x - 3x² - 12 + x⁴ + x³) + (2 + x²)​

Answer 1

Answer:

i don't know this answer

Answer 2

Step-by-step explanation:

$(3x - 3x ^{2} - 12 + x ^{4} + x ^{3} ) + (2 + x ^{2} ) \\ = 3x - 3x ^{3} - 12 + x ^{4} + x ^{3} + 2 + x ^{2} \\ = x ^{4} - 2x^{3} + x ^{2} - 10 \\ =$